Home / 15,603.92-21,531.74-9,230.76

Finding the Fourth Proportional to 15,603.92, 21,531.74 and 9,230.76

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Solution

The fourth proportional to 15,603.92, 21,531.74 and 9,230.76 is: 12,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.92 : 21,531.74 = 9,230.76 : x
  2. Step 2: Convert to fraction form
    15,603.92/21,531.74 = 9,230.76/x
  3. Step 3: Cross multiply
    15,603.92x = 21,531.74 × 9,230.76
  4. Step 4: Simplify right side
    15,603.92x = 198,754,330.09
  5. Step 5: Solve for x
    x = 198,754,330.09/15,603.92
  6. Step 6: Final answer
    x = 12,737.46

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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.