Home / 8,439.96-11,646.68-5,040.81

Finding the Fourth Proportional to 8,439.96, 11,646.68 and 5,040.81

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Solution

The fourth proportional to 8,439.96, 11,646.68 and 5,040.81 is: 6,956.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.96 : 11,646.68 = 5,040.81 : x
  2. Step 2: Convert to fraction form
    8,439.96/11,646.68 = 5,040.81/x
  3. Step 3: Cross multiply
    8,439.96x = 11,646.68 × 5,040.81
  4. Step 4: Simplify right side
    8,439.96x = 58,708,675.81
  5. Step 5: Solve for x
    x = 58,708,675.81/8,439.96
  6. Step 6: Final answer
    x = 6,956.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.