Home / 13,240.73-18,272.25-7,272.52

Finding the Fourth Proportional to 13,240.73, 18,272.25 and 7,272.52

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Solution

The fourth proportional to 13,240.73, 18,272.25 and 7,272.52 is: 10,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.73 : 18,272.25 = 7,272.52 : x
  2. Step 2: Convert to fraction form
    13,240.73/18,272.25 = 7,272.52/x
  3. Step 3: Cross multiply
    13,240.73x = 18,272.25 × 7,272.52
  4. Step 4: Simplify right side
    13,240.73x = 132,885,257.89
  5. Step 5: Solve for x
    x = 132,885,257.89/13,240.73
  6. Step 6: Final answer
    x = 10,036.10

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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.