Home / 8,687.20-13,030.48-3,758.08

Finding the Fourth Proportional to 8,687.20, 13,030.48 and 3,758.08

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Solution

The fourth proportional to 8,687.20, 13,030.48 and 3,758.08 is: 5,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.20 : 13,030.48 = 3,758.08 : x
  2. Step 2: Convert to fraction form
    8,687.20/13,030.48 = 3,758.08/x
  3. Step 3: Cross multiply
    8,687.20x = 13,030.48 × 3,758.08
  4. Step 4: Simplify right side
    8,687.20x = 48,969,586.28
  5. Step 5: Solve for x
    x = 48,969,586.28/8,687.20
  6. Step 6: Final answer
    x = 5,636.98

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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.