Home / 15,229.39-22,788.72-12,572.18

Finding the Fourth Proportional to 15,229.39, 22,788.72 and 12,572.18

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Solution

The fourth proportional to 15,229.39, 22,788.72 and 12,572.18 is: 18,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,229.39 : 22,788.72 = 12,572.18 : x
  2. Step 2: Convert to fraction form
    15,229.39/22,788.72 = 12,572.18/x
  3. Step 3: Cross multiply
    15,229.39x = 22,788.72 × 12,572.18
  4. Step 4: Simplify right side
    15,229.39x = 286,503,889.81
  5. Step 5: Solve for x
    x = 286,503,889.81/15,229.39
  6. Step 6: Final answer
    x = 18,812.57

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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.