Home / 8,528.09-11,755.13-5,689.85

Finding the Fourth Proportional to 8,528.09, 11,755.13 and 5,689.85

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Solution

The fourth proportional to 8,528.09, 11,755.13 and 5,689.85 is: 7,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.09 : 11,755.13 = 5,689.85 : x
  2. Step 2: Convert to fraction form
    8,528.09/11,755.13 = 5,689.85/x
  3. Step 3: Cross multiply
    8,528.09x = 11,755.13 × 5,689.85
  4. Step 4: Simplify right side
    8,528.09x = 66,884,839.21
  5. Step 5: Solve for x
    x = 66,884,839.21/8,528.09
  6. Step 6: Final answer
    x = 7,842.89

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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.