Home / 18,235.36-25,160.16-11,159.20

Finding the Fourth Proportional to 18,235.36, 25,160.16 and 11,159.20

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Solution

The fourth proportional to 18,235.36, 25,160.16 and 11,159.20 is: 15,396.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.36 : 25,160.16 = 11,159.20 : x
  2. Step 2: Convert to fraction form
    18,235.36/25,160.16 = 11,159.20/x
  3. Step 3: Cross multiply
    18,235.36x = 25,160.16 × 11,159.20
  4. Step 4: Simplify right side
    18,235.36x = 280,767,257.47
  5. Step 5: Solve for x
    x = 280,767,257.47/18,235.36
  6. Step 6: Final answer
    x = 15,396.86

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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.