Home / 15,572.42-21,489.62-8,498.84

Finding the Fourth Proportional to 15,572.42, 21,489.62 and 8,498.84

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Solution

The fourth proportional to 15,572.42, 21,489.62 and 8,498.84 is: 11,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.42 : 21,489.62 = 8,498.84 : x
  2. Step 2: Convert to fraction form
    15,572.42/21,489.62 = 8,498.84/x
  3. Step 3: Cross multiply
    15,572.42x = 21,489.62 × 8,498.84
  4. Step 4: Simplify right side
    15,572.42x = 182,636,842.04
  5. Step 5: Solve for x
    x = 182,636,842.04/15,572.42
  6. Step 6: Final answer
    x = 11,728.22

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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.