Home / 10,780.16-16,159.28-8,177.63

Finding the Fourth Proportional to 10,780.16, 16,159.28 and 8,177.63

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Solution

The fourth proportional to 10,780.16, 16,159.28 and 8,177.63 is: 12,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.16 : 16,159.28 = 8,177.63 : x
  2. Step 2: Convert to fraction form
    10,780.16/16,159.28 = 8,177.63/x
  3. Step 3: Cross multiply
    10,780.16x = 16,159.28 × 8,177.63
  4. Step 4: Simplify right side
    10,780.16x = 132,144,491.22
  5. Step 5: Solve for x
    x = 132,144,491.22/10,780.16
  6. Step 6: Final answer
    x = 12,258.13

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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.