Home / 12,887.43-19,331.15-7,048.14

Finding the Fourth Proportional to 12,887.43, 19,331.15 and 7,048.14

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Solution

The fourth proportional to 12,887.43, 19,331.15 and 7,048.14 is: 10,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.43 : 19,331.15 = 7,048.14 : x
  2. Step 2: Convert to fraction form
    12,887.43/19,331.15 = 7,048.14/x
  3. Step 3: Cross multiply
    12,887.43x = 19,331.15 × 7,048.14
  4. Step 4: Simplify right side
    12,887.43x = 136,248,616.32
  5. Step 5: Solve for x
    x = 136,248,616.32/12,887.43
  6. Step 6: Final answer
    x = 10,572.21

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Similar ratio
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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.