Home / 12,180.30-18,277.65-8,885.10

Finding the Fourth Proportional to 12,180.30, 18,277.65 and 8,885.10

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Solution

The fourth proportional to 12,180.30, 18,277.65 and 8,885.10 is: 13,332.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.30 : 18,277.65 = 8,885.10 : x
  2. Step 2: Convert to fraction form
    12,180.30/18,277.65 = 8,885.10/x
  3. Step 3: Cross multiply
    12,180.30x = 18,277.65 × 8,885.10
  4. Step 4: Simplify right side
    12,180.30x = 162,398,748.02
  5. Step 5: Solve for x
    x = 162,398,748.02/12,180.30
  6. Step 6: Final answer
    x = 13,332.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.