Home / 8,731.50-13,098.18-2,889.18

Finding the Fourth Proportional to 8,731.50, 13,098.18 and 2,889.18

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Solution

The fourth proportional to 8,731.50, 13,098.18 and 2,889.18 is: 4,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.50 : 13,098.18 = 2,889.18 : x
  2. Step 2: Convert to fraction form
    8,731.50/13,098.18 = 2,889.18/x
  3. Step 3: Cross multiply
    8,731.50x = 13,098.18 × 2,889.18
  4. Step 4: Simplify right side
    8,731.50x = 37,842,999.69
  5. Step 5: Solve for x
    x = 37,842,999.69/8,731.50
  6. Step 6: Final answer
    x = 4,334.08

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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.