Home / 13,390.68-20,086.08-4,030.74

Finding the Fourth Proportional to 13,390.68, 20,086.08 and 4,030.74

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Solution

The fourth proportional to 13,390.68, 20,086.08 and 4,030.74 is: 6,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.68 : 20,086.08 = 4,030.74 : x
  2. Step 2: Convert to fraction form
    13,390.68/20,086.08 = 4,030.74/x
  3. Step 3: Cross multiply
    13,390.68x = 20,086.08 × 4,030.74
  4. Step 4: Simplify right side
    13,390.68x = 80,961,766.10
  5. Step 5: Solve for x
    x = 80,961,766.10/13,390.68
  6. Step 6: Final answer
    x = 6,046.13

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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.