Home / 9,177.84-12,680.28-6,395.76

Finding the Fourth Proportional to 9,177.84, 12,680.28 and 6,395.76

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Solution

The fourth proportional to 9,177.84, 12,680.28 and 6,395.76 is: 8,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.84 : 12,680.28 = 6,395.76 : x
  2. Step 2: Convert to fraction form
    9,177.84/12,680.28 = 6,395.76/x
  3. Step 3: Cross multiply
    9,177.84x = 12,680.28 × 6,395.76
  4. Step 4: Simplify right side
    9,177.84x = 81,100,027.61
  5. Step 5: Solve for x
    x = 81,100,027.61/9,177.84
  6. Step 6: Final answer
    x = 8,836.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.