Home / 15,484.62-21,368.28-8,770.86

Finding the Fourth Proportional to 15,484.62, 21,368.28 and 8,770.86

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Solution

The fourth proportional to 15,484.62, 21,368.28 and 8,770.86 is: 12,103.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.62 : 21,368.28 = 8,770.86 : x
  2. Step 2: Convert to fraction form
    15,484.62/21,368.28 = 8,770.86/x
  3. Step 3: Cross multiply
    15,484.62x = 21,368.28 × 8,770.86
  4. Step 4: Simplify right side
    15,484.62x = 187,418,245.74
  5. Step 5: Solve for x
    x = 187,418,245.74/15,484.62
  6. Step 6: Final answer
    x = 12,103.51

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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.