Home / 18,280.81-25,227.40-9,897.25

Finding the Fourth Proportional to 18,280.81, 25,227.40 and 9,897.25

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Solution

The fourth proportional to 18,280.81, 25,227.40 and 9,897.25 is: 13,658.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.81 : 25,227.40 = 9,897.25 : x
  2. Step 2: Convert to fraction form
    18,280.81/25,227.40 = 9,897.25/x
  3. Step 3: Cross multiply
    18,280.81x = 25,227.40 × 9,897.25
  4. Step 4: Simplify right side
    18,280.81x = 249,681,884.65
  5. Step 5: Solve for x
    x = 249,681,884.65/18,280.81
  6. Step 6: Final answer
    x = 13,658.14

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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.