Home / 8,699.29-13,043.27-5,728.75

Finding the Fourth Proportional to 8,699.29, 13,043.27 and 5,728.75

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Solution

The fourth proportional to 8,699.29, 13,043.27 and 5,728.75 is: 8,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.29 : 13,043.27 = 5,728.75 : x
  2. Step 2: Convert to fraction form
    8,699.29/13,043.27 = 5,728.75/x
  3. Step 3: Cross multiply
    8,699.29x = 13,043.27 × 5,728.75
  4. Step 4: Simplify right side
    8,699.29x = 74,721,633.01
  5. Step 5: Solve for x
    x = 74,721,633.01/8,699.29
  6. Step 6: Final answer
    x = 8,589.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.