Home / 8,715.04-13,077.68-3,450.56

Finding the Fourth Proportional to 8,715.04, 13,077.68 and 3,450.56

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Solution

The fourth proportional to 8,715.04, 13,077.68 and 3,450.56 is: 5,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.04 : 13,077.68 = 3,450.56 : x
  2. Step 2: Convert to fraction form
    8,715.04/13,077.68 = 3,450.56/x
  3. Step 3: Cross multiply
    8,715.04x = 13,077.68 × 3,450.56
  4. Step 4: Simplify right side
    8,715.04x = 45,125,319.50
  5. Step 5: Solve for x
    x = 45,125,319.50/8,715.04
  6. Step 6: Final answer
    x = 5,177.87

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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.