Home / 13,478.16-20,219.38-4,116.04

Finding the Fourth Proportional to 13,478.16, 20,219.38 and 4,116.04

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Solution

The fourth proportional to 13,478.16, 20,219.38 and 4,116.04 is: 6,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.16 : 20,219.38 = 4,116.04 : x
  2. Step 2: Convert to fraction form
    13,478.16/20,219.38 = 4,116.04/x
  3. Step 3: Cross multiply
    13,478.16x = 20,219.38 × 4,116.04
  4. Step 4: Simplify right side
    13,478.16x = 83,223,776.86
  5. Step 5: Solve for x
    x = 83,223,776.86/13,478.16
  6. Step 6: Final answer
    x = 6,174.71

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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.