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Finding the Fourth Proportional to 10,217.49, 15,305.49 and 9,366.99

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Solution

The fourth proportional to 10,217.49, 15,305.49 and 9,366.99 is: 14,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.49 : 15,305.49 = 9,366.99 : x
  2. Step 2: Convert to fraction form
    10,217.49/15,305.49 = 9,366.99/x
  3. Step 3: Cross multiply
    10,217.49x = 15,305.49 × 9,366.99
  4. Step 4: Simplify right side
    10,217.49x = 143,366,371.78
  5. Step 5: Solve for x
    x = 143,366,371.78/10,217.49
  6. Step 6: Final answer
    x = 14,031.47

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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.