Home / 12,373.87-18,549.55-6,443.79

Finding the Fourth Proportional to 12,373.87, 18,549.55 and 6,443.79

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Solution

The fourth proportional to 12,373.87, 18,549.55 and 6,443.79 is: 9,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.87 : 18,549.55 = 6,443.79 : x
  2. Step 2: Convert to fraction form
    12,373.87/18,549.55 = 6,443.79/x
  3. Step 3: Cross multiply
    12,373.87x = 18,549.55 × 6,443.79
  4. Step 4: Simplify right side
    12,373.87x = 119,529,404.79
  5. Step 5: Solve for x
    x = 119,529,404.79/12,373.87
  6. Step 6: Final answer
    x = 9,659.82

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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.