Home / 8,286.19-12,429.29-5,681.23

Finding the Fourth Proportional to 8,286.19, 12,429.29 and 5,681.23

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Solution

The fourth proportional to 8,286.19, 12,429.29 and 5,681.23 is: 8,521.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.19 : 12,429.29 = 5,681.23 : x
  2. Step 2: Convert to fraction form
    8,286.19/12,429.29 = 5,681.23/x
  3. Step 3: Cross multiply
    8,286.19x = 12,429.29 × 5,681.23
  4. Step 4: Simplify right side
    8,286.19x = 70,613,655.23
  5. Step 5: Solve for x
    x = 70,613,655.23/8,286.19
  6. Step 6: Final answer
    x = 8,521.85

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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.