Home / 8,287.80-11,423.76-6,492.18

Finding the Fourth Proportional to 8,287.80, 11,423.76 and 6,492.18

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Solution

The fourth proportional to 8,287.80, 11,423.76 and 6,492.18 is: 8,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.80 : 11,423.76 = 6,492.18 : x
  2. Step 2: Convert to fraction form
    8,287.80/11,423.76 = 6,492.18/x
  3. Step 3: Cross multiply
    8,287.80x = 11,423.76 × 6,492.18
  4. Step 4: Simplify right side
    8,287.80x = 74,165,106.20
  5. Step 5: Solve for x
    x = 74,165,106.20/8,287.80
  6. Step 6: Final answer
    x = 8,948.71

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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.