Home / 13,422.30-20,123.85-6,020.70

Finding the Fourth Proportional to 13,422.30, 20,123.85 and 6,020.70

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Solution

The fourth proportional to 13,422.30, 20,123.85 and 6,020.70 is: 9,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.30 : 20,123.85 = 6,020.70 : x
  2. Step 2: Convert to fraction form
    13,422.30/20,123.85 = 6,020.70/x
  3. Step 3: Cross multiply
    13,422.30x = 20,123.85 × 6,020.70
  4. Step 4: Simplify right side
    13,422.30x = 121,159,663.70
  5. Step 5: Solve for x
    x = 121,159,663.70/13,422.30
  6. Step 6: Final answer
    x = 9,026.74

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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.