Home / 15,008.40-22,561.20-12,124.80

Finding the Fourth Proportional to 15,008.40, 22,561.20 and 12,124.80

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Solution

The fourth proportional to 15,008.40, 22,561.20 and 12,124.80 is: 18,226.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.40 : 22,561.20 = 12,124.80 : x
  2. Step 2: Convert to fraction form
    15,008.40/22,561.20 = 12,124.80/x
  3. Step 3: Cross multiply
    15,008.40x = 22,561.20 × 12,124.80
  4. Step 4: Simplify right side
    15,008.40x = 273,550,037.76
  5. Step 5: Solve for x
    x = 273,550,037.76/15,008.40
  6. Step 6: Final answer
    x = 18,226.46

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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.