Home / 9,291.43-12,817.99-5,514.76

Finding the Fourth Proportional to 9,291.43, 12,817.99 and 5,514.76

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Solution

The fourth proportional to 9,291.43, 12,817.99 and 5,514.76 is: 7,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.43 : 12,817.99 = 5,514.76 : x
  2. Step 2: Convert to fraction form
    9,291.43/12,817.99 = 5,514.76/x
  3. Step 3: Cross multiply
    9,291.43x = 12,817.99 × 5,514.76
  4. Step 4: Simplify right side
    9,291.43x = 70,688,138.53
  5. Step 5: Solve for x
    x = 70,688,138.53/9,291.43
  6. Step 6: Final answer
    x = 7,607.89

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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.