Home / 10,509.35-14,502.45-5,729.18

Finding the Fourth Proportional to 10,509.35, 14,502.45 and 5,729.18

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Solution

The fourth proportional to 10,509.35, 14,502.45 and 5,729.18 is: 7,906.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.35 : 14,502.45 = 5,729.18 : x
  2. Step 2: Convert to fraction form
    10,509.35/14,502.45 = 5,729.18/x
  3. Step 3: Cross multiply
    10,509.35x = 14,502.45 × 5,729.18
  4. Step 4: Simplify right side
    10,509.35x = 83,087,110.23
  5. Step 5: Solve for x
    x = 83,087,110.23/10,509.35
  6. Step 6: Final answer
    x = 7,906.02

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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.