Home / 14,127.76-21,187.32-8,580.88

Finding the Fourth Proportional to 14,127.76, 21,187.32 and 8,580.88

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Solution

The fourth proportional to 14,127.76, 21,187.32 and 8,580.88 is: 12,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.76 : 21,187.32 = 8,580.88 : x
  2. Step 2: Convert to fraction form
    14,127.76/21,187.32 = 8,580.88/x
  3. Step 3: Cross multiply
    14,127.76x = 21,187.32 × 8,580.88
  4. Step 4: Simplify right side
    14,127.76x = 181,805,850.44
  5. Step 5: Solve for x
    x = 181,805,850.44/14,127.76
  6. Step 6: Final answer
    x = 12,868.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.