Home / 14,780.32-20,397.36-8,491.52

Finding the Fourth Proportional to 14,780.32, 20,397.36 and 8,491.52

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Solution

The fourth proportional to 14,780.32, 20,397.36 and 8,491.52 is: 11,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.32 : 20,397.36 = 8,491.52 : x
  2. Step 2: Convert to fraction form
    14,780.32/20,397.36 = 8,491.52/x
  3. Step 3: Cross multiply
    14,780.32x = 20,397.36 × 8,491.52
  4. Step 4: Simplify right side
    14,780.32x = 173,204,590.39
  5. Step 5: Solve for x
    x = 173,204,590.39/14,780.32
  6. Step 6: Final answer
    x = 11,718.60

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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.