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Finding the Fourth Proportional to 10,868.66, 16,292.05 and 4,292.30

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Solution

The fourth proportional to 10,868.66, 16,292.05 and 4,292.30 is: 6,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.66 : 16,292.05 = 4,292.30 : x
  2. Step 2: Convert to fraction form
    10,868.66/16,292.05 = 4,292.30/x
  3. Step 3: Cross multiply
    10,868.66x = 16,292.05 × 4,292.30
  4. Step 4: Simplify right side
    10,868.66x = 69,930,366.22
  5. Step 5: Solve for x
    x = 69,930,366.22/10,868.66
  6. Step 6: Final answer
    x = 6,434.13

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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.