Home / 14,743.72-20,340.75-9,437.68

Finding the Fourth Proportional to 14,743.72, 20,340.75 and 9,437.68

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Solution

The fourth proportional to 14,743.72, 20,340.75 and 9,437.68 is: 13,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,743.72 : 20,340.75 = 9,437.68 : x
  2. Step 2: Convert to fraction form
    14,743.72/20,340.75 = 9,437.68/x
  3. Step 3: Cross multiply
    14,743.72x = 20,340.75 × 9,437.68
  4. Step 4: Simplify right side
    14,743.72x = 191,969,489.46
  5. Step 5: Solve for x
    x = 191,969,489.46/14,743.72
  6. Step 6: Final answer
    x = 13,020.42

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Half scale
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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.