Home / 8,889.98-12,268.14-5,113.88

Finding the Fourth Proportional to 8,889.98, 12,268.14 and 5,113.88

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Solution

The fourth proportional to 8,889.98, 12,268.14 and 5,113.88 is: 7,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.98 : 12,268.14 = 5,113.88 : x
  2. Step 2: Convert to fraction form
    8,889.98/12,268.14 = 5,113.88/x
  3. Step 3: Cross multiply
    8,889.98x = 12,268.14 × 5,113.88
  4. Step 4: Simplify right side
    8,889.98x = 62,737,795.78
  5. Step 5: Solve for x
    x = 62,737,795.78/8,889.98
  6. Step 6: Final answer
    x = 7,057.14

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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.