Home / 13,390.32-20,079.72-4,626.12

Finding the Fourth Proportional to 13,390.32, 20,079.72 and 4,626.12

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Solution

The fourth proportional to 13,390.32, 20,079.72 and 4,626.12 is: 6,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.32 : 20,079.72 = 4,626.12 : x
  2. Step 2: Convert to fraction form
    13,390.32/20,079.72 = 4,626.12/x
  3. Step 3: Cross multiply
    13,390.32x = 20,079.72 × 4,626.12
  4. Step 4: Simplify right side
    13,390.32x = 92,891,194.29
  5. Step 5: Solve for x
    x = 92,891,194.29/13,390.32
  6. Step 6: Final answer
    x = 6,937.19

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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.