Home / 8,756.46-13,140.14-6,380.15

Finding the Fourth Proportional to 8,756.46, 13,140.14 and 6,380.15

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Solution

The fourth proportional to 8,756.46, 13,140.14 and 6,380.15 is: 9,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.46 : 13,140.14 = 6,380.15 : x
  2. Step 2: Convert to fraction form
    8,756.46/13,140.14 = 6,380.15/x
  3. Step 3: Cross multiply
    8,756.46x = 13,140.14 × 6,380.15
  4. Step 4: Simplify right side
    8,756.46x = 83,835,966.62
  5. Step 5: Solve for x
    x = 83,835,966.62/8,756.46
  6. Step 6: Final answer
    x = 9,574.18

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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.