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Finding the Fourth Proportional to 10,480.88, 15,648.58 and 9,431.12

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Solution

The fourth proportional to 10,480.88, 15,648.58 and 9,431.12 is: 14,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.88 : 15,648.58 = 9,431.12 : x
  2. Step 2: Convert to fraction form
    10,480.88/15,648.58 = 9,431.12/x
  3. Step 3: Cross multiply
    10,480.88x = 15,648.58 × 9,431.12
  4. Step 4: Simplify right side
    10,480.88x = 147,583,635.81
  5. Step 5: Solve for x
    x = 147,583,635.81/10,480.88
  6. Step 6: Final answer
    x = 14,081.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.