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Finding the Fourth Proportional to 9,157.71, 13,726.98 and 4,230.57

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Solution

The fourth proportional to 9,157.71, 13,726.98 and 4,230.57 is: 6,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.71 : 13,726.98 = 4,230.57 : x
  2. Step 2: Convert to fraction form
    9,157.71/13,726.98 = 4,230.57/x
  3. Step 3: Cross multiply
    9,157.71x = 13,726.98 × 4,230.57
  4. Step 4: Simplify right side
    9,157.71x = 58,072,949.78
  5. Step 5: Solve for x
    x = 58,072,949.78/9,157.71
  6. Step 6: Final answer
    x = 6,341.43

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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.