Home / 12,475.80-18,708.90-4,154.16

Finding the Fourth Proportional to 12,475.80, 18,708.90 and 4,154.16

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Solution

The fourth proportional to 12,475.80, 18,708.90 and 4,154.16 is: 6,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.80 : 18,708.90 = 4,154.16 : x
  2. Step 2: Convert to fraction form
    12,475.80/18,708.90 = 4,154.16/x
  3. Step 3: Cross multiply
    12,475.80x = 18,708.90 × 4,154.16
  4. Step 4: Simplify right side
    12,475.80x = 77,719,764.02
  5. Step 5: Solve for x
    x = 77,719,764.02/12,475.80
  6. Step 6: Final answer
    x = 6,229.64

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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.