Home / 13,601.12-18,770.04-8,292.20

Finding the Fourth Proportional to 13,601.12, 18,770.04 and 8,292.20

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Solution

The fourth proportional to 13,601.12, 18,770.04 and 8,292.20 is: 11,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.12 : 18,770.04 = 8,292.20 : x
  2. Step 2: Convert to fraction form
    13,601.12/18,770.04 = 8,292.20/x
  3. Step 3: Cross multiply
    13,601.12x = 18,770.04 × 8,292.20
  4. Step 4: Simplify right side
    13,601.12x = 155,644,925.69
  5. Step 5: Solve for x
    x = 155,644,925.69/13,601.12
  6. Step 6: Final answer
    x = 11,443.54

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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.