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Finding the Fourth Proportional to 12,655.03, 17,463.17 and 7,620.88

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Solution

The fourth proportional to 12,655.03, 17,463.17 and 7,620.88 is: 10,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.03 : 17,463.17 = 7,620.88 : x
  2. Step 2: Convert to fraction form
    12,655.03/17,463.17 = 7,620.88/x
  3. Step 3: Cross multiply
    12,655.03x = 17,463.17 × 7,620.88
  4. Step 4: Simplify right side
    12,655.03x = 133,084,722.99
  5. Step 5: Solve for x
    x = 133,084,722.99/12,655.03
  6. Step 6: Final answer
    x = 10,516.35

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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.