Home / 8,943.52-12,340.18-5,406.04

Finding the Fourth Proportional to 8,943.52, 12,340.18 and 5,406.04

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Solution

The fourth proportional to 8,943.52, 12,340.18 and 5,406.04 is: 7,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.52 : 12,340.18 = 5,406.04 : x
  2. Step 2: Convert to fraction form
    8,943.52/12,340.18 = 5,406.04/x
  3. Step 3: Cross multiply
    8,943.52x = 12,340.18 × 5,406.04
  4. Step 4: Simplify right side
    8,943.52x = 66,711,506.69
  5. Step 5: Solve for x
    x = 66,711,506.69/8,943.52
  6. Step 6: Final answer
    x = 7,459.20

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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.