Home / 15,182.34-22,782.15-12,123.78

Finding the Fourth Proportional to 15,182.34, 22,782.15 and 12,123.78

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Solution

The fourth proportional to 15,182.34, 22,782.15 and 12,123.78 is: 18,192.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.34 : 22,782.15 = 12,123.78 : x
  2. Step 2: Convert to fraction form
    15,182.34/22,782.15 = 12,123.78/x
  3. Step 3: Cross multiply
    15,182.34x = 22,782.15 × 12,123.78
  4. Step 4: Simplify right side
    15,182.34x = 276,205,774.53
  5. Step 5: Solve for x
    x = 276,205,774.53/15,182.34
  6. Step 6: Final answer
    x = 18,192.57

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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.