Home / 18,359.88-25,347.38-13,319.25

Finding the Fourth Proportional to 18,359.88, 25,347.38 and 13,319.25

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Solution

The fourth proportional to 18,359.88, 25,347.38 and 13,319.25 is: 18,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.88 : 25,347.38 = 13,319.25 : x
  2. Step 2: Convert to fraction form
    18,359.88/25,347.38 = 13,319.25/x
  3. Step 3: Cross multiply
    18,359.88x = 25,347.38 × 13,319.25
  4. Step 4: Simplify right side
    18,359.88x = 337,608,024.47
  5. Step 5: Solve for x
    x = 337,608,024.47/18,359.88
  6. Step 6: Final answer
    x = 18,388.36

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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.