Home / 18,612.75-25,675.21-11,437.69

Finding the Fourth Proportional to 18,612.75, 25,675.21 and 11,437.69

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Solution

The fourth proportional to 18,612.75, 25,675.21 and 11,437.69 is: 15,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.75 : 25,675.21 = 11,437.69 : x
  2. Step 2: Convert to fraction form
    18,612.75/25,675.21 = 11,437.69/x
  3. Step 3: Cross multiply
    18,612.75x = 25,675.21 × 11,437.69
  4. Step 4: Simplify right side
    18,612.75x = 293,665,026.58
  5. Step 5: Solve for x
    x = 293,665,026.58/18,612.75
  6. Step 6: Final answer
    x = 15,777.62

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Half scale
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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.