Home / 11,158.58-15,360.18-9,645.44

Finding the Fourth Proportional to 11,158.58, 15,360.18 and 9,645.44

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Solution

The fourth proportional to 11,158.58, 15,360.18 and 9,645.44 is: 13,277.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.58 : 15,360.18 = 9,645.44 : x
  2. Step 2: Convert to fraction form
    11,158.58/15,360.18 = 9,645.44/x
  3. Step 3: Cross multiply
    11,158.58x = 15,360.18 × 9,645.44
  4. Step 4: Simplify right side
    11,158.58x = 148,155,694.58
  5. Step 5: Solve for x
    x = 148,155,694.58/11,158.58
  6. Step 6: Final answer
    x = 13,277.29

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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.