Home / 8,780.77-13,151.38-6,159.95

Finding the Fourth Proportional to 8,780.77, 13,151.38 and 6,159.95

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Solution

The fourth proportional to 8,780.77, 13,151.38 and 6,159.95 is: 9,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.77 : 13,151.38 = 6,159.95 : x
  2. Step 2: Convert to fraction form
    8,780.77/13,151.38 = 6,159.95/x
  3. Step 3: Cross multiply
    8,780.77x = 13,151.38 × 6,159.95
  4. Step 4: Simplify right side
    8,780.77x = 81,011,843.23
  5. Step 5: Solve for x
    x = 81,011,843.23/8,780.77
  6. Step 6: Final answer
    x = 9,226.05

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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.