Home / 8,170.12-11,275.14-6,283.72

Finding the Fourth Proportional to 8,170.12, 11,275.14 and 6,283.72

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Solution

The fourth proportional to 8,170.12, 11,275.14 and 6,283.72 is: 8,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.12 : 11,275.14 = 6,283.72 : x
  2. Step 2: Convert to fraction form
    8,170.12/11,275.14 = 6,283.72/x
  3. Step 3: Cross multiply
    8,170.12x = 11,275.14 × 6,283.72
  4. Step 4: Simplify right side
    8,170.12x = 70,849,822.72
  5. Step 5: Solve for x
    x = 70,849,822.72/8,170.12
  6. Step 6: Final answer
    x = 8,671.82

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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.