Home / 8,701.68-13,042.80-5,241.36

Finding the Fourth Proportional to 8,701.68, 13,042.80 and 5,241.36

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Solution

The fourth proportional to 8,701.68, 13,042.80 and 5,241.36 is: 7,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.68 : 13,042.80 = 5,241.36 : x
  2. Step 2: Convert to fraction form
    8,701.68/13,042.80 = 5,241.36/x
  3. Step 3: Cross multiply
    8,701.68x = 13,042.80 × 5,241.36
  4. Step 4: Simplify right side
    8,701.68x = 68,362,010.21
  5. Step 5: Solve for x
    x = 68,362,010.21/8,701.68
  6. Step 6: Final answer
    x = 7,856.19

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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.