Home / 8,439.18-11,651.03-5,790.48

Finding the Fourth Proportional to 8,439.18, 11,651.03 and 5,790.48

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Solution

The fourth proportional to 8,439.18, 11,651.03 and 5,790.48 is: 7,994.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.18 : 11,651.03 = 5,790.48 : x
  2. Step 2: Convert to fraction form
    8,439.18/11,651.03 = 5,790.48/x
  3. Step 3: Cross multiply
    8,439.18x = 11,651.03 × 5,790.48
  4. Step 4: Simplify right side
    8,439.18x = 67,465,056.19
  5. Step 5: Solve for x
    x = 67,465,056.19/8,439.18
  6. Step 6: Final answer
    x = 7,994.27

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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.