Home / 13,250.28-18,287.98-8,774.22

Finding the Fourth Proportional to 13,250.28, 18,287.98 and 8,774.22

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Solution

The fourth proportional to 13,250.28, 18,287.98 and 8,774.22 is: 12,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.28 : 18,287.98 = 8,774.22 : x
  2. Step 2: Convert to fraction form
    13,250.28/18,287.98 = 8,774.22/x
  3. Step 3: Cross multiply
    13,250.28x = 18,287.98 × 8,774.22
  4. Step 4: Simplify right side
    13,250.28x = 160,462,761.72
  5. Step 5: Solve for x
    x = 160,462,761.72/13,250.28
  6. Step 6: Final answer
    x = 12,110.14

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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.