Home / 13,442.40-20,156.34-10,314.66

Finding the Fourth Proportional to 13,442.40, 20,156.34 and 10,314.66

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Solution

The fourth proportional to 13,442.40, 20,156.34 and 10,314.66 is: 15,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.40 : 20,156.34 = 10,314.66 : x
  2. Step 2: Convert to fraction form
    13,442.40/20,156.34 = 10,314.66/x
  3. Step 3: Cross multiply
    13,442.40x = 20,156.34 × 10,314.66
  4. Step 4: Simplify right side
    13,442.40x = 207,905,793.94
  5. Step 5: Solve for x
    x = 207,905,793.94/13,442.40
  6. Step 6: Final answer
    x = 15,466.42

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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.