Home / 8,780.10-13,142.04-6,150.84

Finding the Fourth Proportional to 8,780.10, 13,142.04 and 6,150.84

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Solution

The fourth proportional to 8,780.10, 13,142.04 and 6,150.84 is: 9,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.10 : 13,142.04 = 6,150.84 : x
  2. Step 2: Convert to fraction form
    8,780.10/13,142.04 = 6,150.84/x
  3. Step 3: Cross multiply
    8,780.10x = 13,142.04 × 6,150.84
  4. Step 4: Simplify right side
    8,780.10x = 80,834,585.31
  5. Step 5: Solve for x
    x = 80,834,585.31/8,780.10
  6. Step 6: Final answer
    x = 9,206.57

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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.