Home / 18,286.74-25,235.42-9,903.24

Finding the Fourth Proportional to 18,286.74, 25,235.42 and 9,903.24

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Solution

The fourth proportional to 18,286.74, 25,235.42 and 9,903.24 is: 13,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.74 : 25,235.42 = 9,903.24 : x
  2. Step 2: Convert to fraction form
    18,286.74/25,235.42 = 9,903.24/x
  3. Step 3: Cross multiply
    18,286.74x = 25,235.42 × 9,903.24
  4. Step 4: Simplify right side
    18,286.74x = 249,912,371.24
  5. Step 5: Solve for x
    x = 249,912,371.24/18,286.74
  6. Step 6: Final answer
    x = 13,666.32

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Half scale
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Double scale
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Similar ratio
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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.