Home / 13,446.16-18,549.48-8,407.12

Finding the Fourth Proportional to 13,446.16, 18,549.48 and 8,407.12

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Solution

The fourth proportional to 13,446.16, 18,549.48 and 8,407.12 is: 11,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.16 : 18,549.48 = 8,407.12 : x
  2. Step 2: Convert to fraction form
    13,446.16/18,549.48 = 8,407.12/x
  3. Step 3: Cross multiply
    13,446.16x = 18,549.48 × 8,407.12
  4. Step 4: Simplify right side
    13,446.16x = 155,947,704.30
  5. Step 5: Solve for x
    x = 155,947,704.30/13,446.16
  6. Step 6: Final answer
    x = 11,597.94

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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.