Home / 10,165.60-15,168.29-9,055.70

Finding the Fourth Proportional to 10,165.60, 15,168.29 and 9,055.70

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Solution

The fourth proportional to 10,165.60, 15,168.29 and 9,055.70 is: 13,512.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,165.60 : 15,168.29 = 9,055.70 : x
  2. Step 2: Convert to fraction form
    10,165.60/15,168.29 = 9,055.70/x
  3. Step 3: Cross multiply
    10,165.60x = 15,168.29 × 9,055.70
  4. Step 4: Simplify right side
    10,165.60x = 137,359,444.98
  5. Step 5: Solve for x
    x = 137,359,444.98/10,165.60
  6. Step 6: Final answer
    x = 13,512.18

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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.