Home / 8,259.26-11,394.80-5,428.18

Finding the Fourth Proportional to 8,259.26, 11,394.80 and 5,428.18

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Solution

The fourth proportional to 8,259.26, 11,394.80 and 5,428.18 is: 7,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.26 : 11,394.80 = 5,428.18 : x
  2. Step 2: Convert to fraction form
    8,259.26/11,394.80 = 5,428.18/x
  3. Step 3: Cross multiply
    8,259.26x = 11,394.80 × 5,428.18
  4. Step 4: Simplify right side
    8,259.26x = 61,853,025.46
  5. Step 5: Solve for x
    x = 61,853,025.46/8,259.26
  6. Step 6: Final answer
    x = 7,488.93

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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.