Home / 13,261.16-18,302.17-8,559.12

Finding the Fourth Proportional to 13,261.16, 18,302.17 and 8,559.12

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Solution

The fourth proportional to 13,261.16, 18,302.17 and 8,559.12 is: 11,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.16 : 18,302.17 = 8,559.12 : x
  2. Step 2: Convert to fraction form
    13,261.16/18,302.17 = 8,559.12/x
  3. Step 3: Cross multiply
    13,261.16x = 18,302.17 × 8,559.12
  4. Step 4: Simplify right side
    13,261.16x = 156,650,469.29
  5. Step 5: Solve for x
    x = 156,650,469.29/13,261.16
  6. Step 6: Final answer
    x = 11,812.73

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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.