Home / 12,433.32-17,158.68-7,129.02

Finding the Fourth Proportional to 12,433.32, 17,158.68 and 7,129.02

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Solution

The fourth proportional to 12,433.32, 17,158.68 and 7,129.02 is: 9,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.32 : 17,158.68 = 7,129.02 : x
  2. Step 2: Convert to fraction form
    12,433.32/17,158.68 = 7,129.02/x
  3. Step 3: Cross multiply
    12,433.32x = 17,158.68 × 7,129.02
  4. Step 4: Simplify right side
    12,433.32x = 122,324,572.89
  5. Step 5: Solve for x
    x = 122,324,572.89/12,433.32
  6. Step 6: Final answer
    x = 9,838.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.