Home / 10,509.40-14,502.66-5,729.16

Finding the Fourth Proportional to 10,509.40, 14,502.66 and 5,729.16

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Solution

The fourth proportional to 10,509.40, 14,502.66 and 5,729.16 is: 7,906.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.40 : 14,502.66 = 5,729.16 : x
  2. Step 2: Convert to fraction form
    10,509.40/14,502.66 = 5,729.16/x
  3. Step 3: Cross multiply
    10,509.40x = 14,502.66 × 5,729.16
  4. Step 4: Simplify right side
    10,509.40x = 83,088,059.57
  5. Step 5: Solve for x
    x = 83,088,059.57/10,509.40
  6. Step 6: Final answer
    x = 7,906.07

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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.