Home / 14,988.57-20,685.15-8,617.20

Finding the Fourth Proportional to 14,988.57, 20,685.15 and 8,617.20

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Solution

The fourth proportional to 14,988.57, 20,685.15 and 8,617.20 is: 11,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.57 : 20,685.15 = 8,617.20 : x
  2. Step 2: Convert to fraction form
    14,988.57/20,685.15 = 8,617.20/x
  3. Step 3: Cross multiply
    14,988.57x = 20,685.15 × 8,617.20
  4. Step 4: Simplify right side
    14,988.57x = 178,248,074.58
  5. Step 5: Solve for x
    x = 178,248,074.58/14,988.57
  6. Step 6: Final answer
    x = 11,892.27

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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.