Home / 8,170.55-11,281.71-6,279.13

Finding the Fourth Proportional to 8,170.55, 11,281.71 and 6,279.13

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Solution

The fourth proportional to 8,170.55, 11,281.71 and 6,279.13 is: 8,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.55 : 11,281.71 = 6,279.13 : x
  2. Step 2: Convert to fraction form
    8,170.55/11,281.71 = 6,279.13/x
  3. Step 3: Cross multiply
    8,170.55x = 11,281.71 × 6,279.13
  4. Step 4: Simplify right side
    8,170.55x = 70,839,323.71
  5. Step 5: Solve for x
    x = 70,839,323.71/8,170.55
  6. Step 6: Final answer
    x = 8,670.08

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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.