Home / 12,150.60-18,177.30-10,525.20

Finding the Fourth Proportional to 12,150.60, 18,177.30 and 10,525.20

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Solution

The fourth proportional to 12,150.60, 18,177.30 and 10,525.20 is: 15,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.60 : 18,177.30 = 10,525.20 : x
  2. Step 2: Convert to fraction form
    12,150.60/18,177.30 = 10,525.20/x
  3. Step 3: Cross multiply
    12,150.60x = 18,177.30 × 10,525.20
  4. Step 4: Simplify right side
    12,150.60x = 191,319,717.96
  5. Step 5: Solve for x
    x = 191,319,717.96/12,150.60
  6. Step 6: Final answer
    x = 15,745.70

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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.