Home / 8,488.15-12,732.84-3,557.08

Finding the Fourth Proportional to 8,488.15, 12,732.84 and 3,557.08

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Solution

The fourth proportional to 8,488.15, 12,732.84 and 3,557.08 is: 5,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.15 : 12,732.84 = 3,557.08 : x
  2. Step 2: Convert to fraction form
    8,488.15/12,732.84 = 3,557.08/x
  3. Step 3: Cross multiply
    8,488.15x = 12,732.84 × 3,557.08
  4. Step 4: Simplify right side
    8,488.15x = 45,291,674.80
  5. Step 5: Solve for x
    x = 45,291,674.80/8,488.15
  6. Step 6: Final answer
    x = 5,335.87

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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.