Home / 15,280.78-22,817.71-12,125.36

Finding the Fourth Proportional to 15,280.78, 22,817.71 and 12,125.36

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Solution

The fourth proportional to 15,280.78, 22,817.71 and 12,125.36 is: 18,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.78 : 22,817.71 = 12,125.36 : x
  2. Step 2: Convert to fraction form
    15,280.78/22,817.71 = 12,125.36/x
  3. Step 3: Cross multiply
    15,280.78x = 22,817.71 × 12,125.36
  4. Step 4: Simplify right side
    15,280.78x = 276,672,773.41
  5. Step 5: Solve for x
    x = 276,672,773.41/15,280.78
  6. Step 6: Final answer
    x = 18,105.93

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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.