Home / 8,889.97-12,268.28-5,113.21

Finding the Fourth Proportional to 8,889.97, 12,268.28 and 5,113.21

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Solution

The fourth proportional to 8,889.97, 12,268.28 and 5,113.21 is: 7,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.97 : 12,268.28 = 5,113.21 : x
  2. Step 2: Convert to fraction form
    8,889.97/12,268.28 = 5,113.21/x
  3. Step 3: Cross multiply
    8,889.97x = 12,268.28 × 5,113.21
  4. Step 4: Simplify right side
    8,889.97x = 62,730,291.98
  5. Step 5: Solve for x
    x = 62,730,291.98/8,889.97
  6. Step 6: Final answer
    x = 7,056.30

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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.