Home / 13,240.59-18,272.07-7,272.11

Finding the Fourth Proportional to 13,240.59, 18,272.07 and 7,272.11

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Solution

The fourth proportional to 13,240.59, 18,272.07 and 7,272.11 is: 10,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.59 : 18,272.07 = 7,272.11 : x
  2. Step 2: Convert to fraction form
    13,240.59/18,272.07 = 7,272.11/x
  3. Step 3: Cross multiply
    13,240.59x = 18,272.07 × 7,272.11
  4. Step 4: Simplify right side
    13,240.59x = 132,876,411.61
  5. Step 5: Solve for x
    x = 132,876,411.61/13,240.59
  6. Step 6: Final answer
    x = 10,035.54

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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.