Home / 12,153.60-18,233.10-9,529.20

Finding the Fourth Proportional to 12,153.60, 18,233.10 and 9,529.20

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Solution

The fourth proportional to 12,153.60, 18,233.10 and 9,529.20 is: 14,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.60 : 18,233.10 = 9,529.20 : x
  2. Step 2: Convert to fraction form
    12,153.60/18,233.10 = 9,529.20/x
  3. Step 3: Cross multiply
    12,153.60x = 18,233.10 × 9,529.20
  4. Step 4: Simplify right side
    12,153.60x = 173,746,856.52
  5. Step 5: Solve for x
    x = 173,746,856.52/12,153.60
  6. Step 6: Final answer
    x = 14,295.92

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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.