Home / 14,585.73-20,135.16-11,403.69

Finding the Fourth Proportional to 14,585.73, 20,135.16 and 11,403.69

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Solution

The fourth proportional to 14,585.73, 20,135.16 and 11,403.69 is: 15,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.73 : 20,135.16 = 11,403.69 : x
  2. Step 2: Convert to fraction form
    14,585.73/20,135.16 = 11,403.69/x
  3. Step 3: Cross multiply
    14,585.73x = 20,135.16 × 11,403.69
  4. Step 4: Simplify right side
    14,585.73x = 229,615,122.74
  5. Step 5: Solve for x
    x = 229,615,122.74/14,585.73
  6. Step 6: Final answer
    x = 15,742.45

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Half scale
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Double scale
Find fourth proportional to 14,586.73, 20,136.54 and 11,404.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.