Home / 18,254.25-25,190.91-9,870.75

Finding the Fourth Proportional to 18,254.25, 25,190.91 and 9,870.75

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Solution

The fourth proportional to 18,254.25, 25,190.91 and 9,870.75 is: 13,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.25 : 25,190.91 = 9,870.75 : x
  2. Step 2: Convert to fraction form
    18,254.25/25,190.91 = 9,870.75/x
  3. Step 3: Cross multiply
    18,254.25x = 25,190.91 × 9,870.75
  4. Step 4: Simplify right side
    18,254.25x = 248,653,174.88
  5. Step 5: Solve for x
    x = 248,653,174.88/18,254.25
  6. Step 6: Final answer
    x = 13,621.66

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Double scale
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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.