Home / 13,377.68-20,034.98-10,605.90

Finding the Fourth Proportional to 13,377.68, 20,034.98 and 10,605.90

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Solution

The fourth proportional to 13,377.68, 20,034.98 and 10,605.90 is: 15,883.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.68 : 20,034.98 = 10,605.90 : x
  2. Step 2: Convert to fraction form
    13,377.68/20,034.98 = 10,605.90/x
  3. Step 3: Cross multiply
    13,377.68x = 20,034.98 × 10,605.90
  4. Step 4: Simplify right side
    13,377.68x = 212,488,994.38
  5. Step 5: Solve for x
    x = 212,488,994.38/13,377.68
  6. Step 6: Final answer
    x = 15,883.84

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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.