Home / 14,145.10-21,217.65-3,615.10

Finding the Fourth Proportional to 14,145.10, 21,217.65 and 3,615.10

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Solution

The fourth proportional to 14,145.10, 21,217.65 and 3,615.10 is: 5,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.10 : 21,217.65 = 3,615.10 : x
  2. Step 2: Convert to fraction form
    14,145.10/21,217.65 = 3,615.10/x
  3. Step 3: Cross multiply
    14,145.10x = 21,217.65 × 3,615.10
  4. Step 4: Simplify right side
    14,145.10x = 76,703,926.52
  5. Step 5: Solve for x
    x = 76,703,926.52/14,145.10
  6. Step 6: Final answer
    x = 5,422.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.