Home / 13,348.11-20,025.03-3,988.86

Finding the Fourth Proportional to 13,348.11, 20,025.03 and 3,988.86

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Solution

The fourth proportional to 13,348.11, 20,025.03 and 3,988.86 is: 5,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.11 : 20,025.03 = 3,988.86 : x
  2. Step 2: Convert to fraction form
    13,348.11/20,025.03 = 3,988.86/x
  3. Step 3: Cross multiply
    13,348.11x = 20,025.03 × 3,988.86
  4. Step 4: Simplify right side
    13,348.11x = 79,877,041.17
  5. Step 5: Solve for x
    x = 79,877,041.17/13,348.11
  6. Step 6: Final answer
    x = 5,984.15

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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.