Home / 9,018.20-12,453.63-8,527.34

Finding the Fourth Proportional to 9,018.20, 12,453.63 and 8,527.34

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Solution

The fourth proportional to 9,018.20, 12,453.63 and 8,527.34 is: 11,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.20 : 12,453.63 = 8,527.34 : x
  2. Step 2: Convert to fraction form
    9,018.20/12,453.63 = 8,527.34/x
  3. Step 3: Cross multiply
    9,018.20x = 12,453.63 × 8,527.34
  4. Step 4: Simplify right side
    9,018.20x = 106,196,337.24
  5. Step 5: Solve for x
    x = 106,196,337.24/9,018.20
  6. Step 6: Final answer
    x = 11,775.78

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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.