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Finding the Fourth Proportional to 10,681.52, 16,030.11 and 8,626.10

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Solution

The fourth proportional to 10,681.52, 16,030.11 and 8,626.10 is: 12,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681.52 : 16,030.11 = 8,626.10 : x
  2. Step 2: Convert to fraction form
    10,681.52/16,030.11 = 8,626.10/x
  3. Step 3: Cross multiply
    10,681.52x = 16,030.11 × 8,626.10
  4. Step 4: Simplify right side
    10,681.52x = 138,277,331.87
  5. Step 5: Solve for x
    x = 138,277,331.87/10,681.52
  6. Step 6: Final answer
    x = 12,945.47

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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.