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Finding the Fourth Proportional to 10,863.59, 14,991.98 and 6,147.87

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Solution

The fourth proportional to 10,863.59, 14,991.98 and 6,147.87 is: 8,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.59 : 14,991.98 = 6,147.87 : x
  2. Step 2: Convert to fraction form
    10,863.59/14,991.98 = 6,147.87/x
  3. Step 3: Cross multiply
    10,863.59x = 14,991.98 × 6,147.87
  4. Step 4: Simplify right side
    10,863.59x = 92,168,744.08
  5. Step 5: Solve for x
    x = 92,168,744.08/10,863.59
  6. Step 6: Final answer
    x = 8,484.19

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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.