Home / 13,437.59-20,156.40-3,442.38

Finding the Fourth Proportional to 13,437.59, 20,156.40 and 3,442.38

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Solution

The fourth proportional to 13,437.59, 20,156.40 and 3,442.38 is: 5,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.59 : 20,156.40 = 3,442.38 : x
  2. Step 2: Convert to fraction form
    13,437.59/20,156.40 = 3,442.38/x
  3. Step 3: Cross multiply
    13,437.59x = 20,156.40 × 3,442.38
  4. Step 4: Simplify right side
    13,437.59x = 69,385,899.74
  5. Step 5: Solve for x
    x = 69,385,899.74/13,437.59
  6. Step 6: Final answer
    x = 5,163.57

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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.