Home / 15,474.04-21,354.62-8,400.92

Finding the Fourth Proportional to 15,474.04, 21,354.62 and 8,400.92

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Solution

The fourth proportional to 15,474.04, 21,354.62 and 8,400.92 is: 11,593.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.04 : 21,354.62 = 8,400.92 : x
  2. Step 2: Convert to fraction form
    15,474.04/21,354.62 = 8,400.92/x
  3. Step 3: Cross multiply
    15,474.04x = 21,354.62 × 8,400.92
  4. Step 4: Simplify right side
    15,474.04x = 179,398,454.25
  5. Step 5: Solve for x
    x = 179,398,454.25/15,474.04
  6. Step 6: Final answer
    x = 11,593.51

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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.