Home / 9,931.17-13,693.81-7,237.64

Finding the Fourth Proportional to 9,931.17, 13,693.81 and 7,237.64

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Solution

The fourth proportional to 9,931.17, 13,693.81 and 7,237.64 is: 9,979.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.17 : 13,693.81 = 7,237.64 : x
  2. Step 2: Convert to fraction form
    9,931.17/13,693.81 = 7,237.64/x
  3. Step 3: Cross multiply
    9,931.17x = 13,693.81 × 7,237.64
  4. Step 4: Simplify right side
    9,931.17x = 99,110,819.69
  5. Step 5: Solve for x
    x = 99,110,819.69/9,931.17
  6. Step 6: Final answer
    x = 9,979.77

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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.