Home / 8,439.06-12,651.41-5,154.46

Finding the Fourth Proportional to 8,439.06, 12,651.41 and 5,154.46

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Solution

The fourth proportional to 8,439.06, 12,651.41 and 5,154.46 is: 7,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.06 : 12,651.41 = 5,154.46 : x
  2. Step 2: Convert to fraction form
    8,439.06/12,651.41 = 5,154.46/x
  3. Step 3: Cross multiply
    8,439.06x = 12,651.41 × 5,154.46
  4. Step 4: Simplify right side
    8,439.06x = 65,211,186.79
  5. Step 5: Solve for x
    x = 65,211,186.79/8,439.06
  6. Step 6: Final answer
    x = 7,727.30

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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.