Home / 12,177.75-18,276.20-6,254.40

Finding the Fourth Proportional to 12,177.75, 18,276.20 and 6,254.40

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Solution

The fourth proportional to 12,177.75, 18,276.20 and 6,254.40 is: 9,386.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.75 : 18,276.20 = 6,254.40 : x
  2. Step 2: Convert to fraction form
    12,177.75/18,276.20 = 6,254.40/x
  3. Step 3: Cross multiply
    12,177.75x = 18,276.20 × 6,254.40
  4. Step 4: Simplify right side
    12,177.75x = 114,306,634.01
  5. Step 5: Solve for x
    x = 114,306,634.01/12,177.75
  6. Step 6: Final answer
    x = 9,386.52

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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.