Home / 15,123.29-22,684.85-3,878.57

Finding the Fourth Proportional to 15,123.29, 22,684.85 and 3,878.57

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Solution

The fourth proportional to 15,123.29, 22,684.85 and 3,878.57 is: 5,817.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.29 : 22,684.85 = 3,878.57 : x
  2. Step 2: Convert to fraction form
    15,123.29/22,684.85 = 3,878.57/x
  3. Step 3: Cross multiply
    15,123.29x = 22,684.85 × 3,878.57
  4. Step 4: Simplify right side
    15,123.29x = 87,984,835.38
  5. Step 5: Solve for x
    x = 87,984,835.38/15,123.29
  6. Step 6: Final answer
    x = 5,817.84

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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.