Home / 14,771.16-20,387.70-8,487.18

Finding the Fourth Proportional to 14,771.16, 20,387.70 and 8,487.18

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Solution

The fourth proportional to 14,771.16, 20,387.70 and 8,487.18 is: 11,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,771.16 : 20,387.70 = 8,487.18 : x
  2. Step 2: Convert to fraction form
    14,771.16/20,387.70 = 8,487.18/x
  3. Step 3: Cross multiply
    14,771.16x = 20,387.70 × 8,487.18
  4. Step 4: Simplify right side
    14,771.16x = 173,034,079.69
  5. Step 5: Solve for x
    x = 173,034,079.69/14,771.16
  6. Step 6: Final answer
    x = 11,714.32

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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.