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Finding the Fourth Proportional to 18,265.69, 25,206.69 and 9,882.19

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Solution

The fourth proportional to 18,265.69, 25,206.69 and 9,882.19 is: 13,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.69 : 25,206.69 = 9,882.19 : x
  2. Step 2: Convert to fraction form
    18,265.69/25,206.69 = 9,882.19/x
  3. Step 3: Cross multiply
    18,265.69x = 25,206.69 × 9,882.19
  4. Step 4: Simplify right side
    18,265.69x = 249,097,299.85
  5. Step 5: Solve for x
    x = 249,097,299.85/18,265.69
  6. Step 6: Final answer
    x = 13,637.44

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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.