Home / 13,617.15-18,793.52-7,649.16

Finding the Fourth Proportional to 13,617.15, 18,793.52 and 7,649.16

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Solution

The fourth proportional to 13,617.15, 18,793.52 and 7,649.16 is: 10,556.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.15 : 18,793.52 = 7,649.16 : x
  2. Step 2: Convert to fraction form
    13,617.15/18,793.52 = 7,649.16/x
  3. Step 3: Cross multiply
    13,617.15x = 18,793.52 × 7,649.16
  4. Step 4: Simplify right side
    13,617.15x = 143,754,603.20
  5. Step 5: Solve for x
    x = 143,754,603.20/13,617.15
  6. Step 6: Final answer
    x = 10,556.88

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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.