Home / 8,439.56-12,652.16-5,154.96

Finding the Fourth Proportional to 8,439.56, 12,652.16 and 5,154.96

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Solution

The fourth proportional to 8,439.56, 12,652.16 and 5,154.96 is: 7,728.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.56 : 12,652.16 = 5,154.96 : x
  2. Step 2: Convert to fraction form
    8,439.56/12,652.16 = 5,154.96/x
  3. Step 3: Cross multiply
    8,439.56x = 12,652.16 × 5,154.96
  4. Step 4: Simplify right side
    8,439.56x = 65,221,378.71
  5. Step 5: Solve for x
    x = 65,221,378.71/8,439.56
  6. Step 6: Final answer
    x = 7,728.05

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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.