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Finding the Fourth Proportional to 12,605.03, 17,395.34 and 6,862.87

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Solution

The fourth proportional to 12,605.03, 17,395.34 and 6,862.87 is: 9,470.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.03 : 17,395.34 = 6,862.87 : x
  2. Step 2: Convert to fraction form
    12,605.03/17,395.34 = 6,862.87/x
  3. Step 3: Cross multiply
    12,605.03x = 17,395.34 × 6,862.87
  4. Step 4: Simplify right side
    12,605.03x = 119,381,957.03
  5. Step 5: Solve for x
    x = 119,381,957.03/12,605.03
  6. Step 6: Final answer
    x = 9,470.98

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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.