Home / 8,423.40-12,637.18-3,805.16

Finding the Fourth Proportional to 8,423.40, 12,637.18 and 3,805.16

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Solution

The fourth proportional to 8,423.40, 12,637.18 and 3,805.16 is: 5,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.40 : 12,637.18 = 3,805.16 : x
  2. Step 2: Convert to fraction form
    8,423.40/12,637.18 = 3,805.16/x
  3. Step 3: Cross multiply
    8,423.40x = 12,637.18 × 3,805.16
  4. Step 4: Simplify right side
    8,423.40x = 48,086,491.85
  5. Step 5: Solve for x
    x = 48,086,491.85/8,423.40
  6. Step 6: Final answer
    x = 5,708.68

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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.