Home / 15,650.96-21,595.41-9,975.69

Finding the Fourth Proportional to 15,650.96, 21,595.41 and 9,975.69

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Solution

The fourth proportional to 15,650.96, 21,595.41 and 9,975.69 is: 13,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.96 : 21,595.41 = 9,975.69 : x
  2. Step 2: Convert to fraction form
    15,650.96/21,595.41 = 9,975.69/x
  3. Step 3: Cross multiply
    15,650.96x = 21,595.41 × 9,975.69
  4. Step 4: Simplify right side
    15,650.96x = 215,429,115.58
  5. Step 5: Solve for x
    x = 215,429,115.58/15,650.96
  6. Step 6: Final answer
    x = 13,764.60

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Double scale
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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.