Home / 9,177.80-13,766.70-7,752.20

Finding the Fourth Proportional to 9,177.80, 13,766.70 and 7,752.20

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Solution

The fourth proportional to 9,177.80, 13,766.70 and 7,752.20 is: 11,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.80 : 13,766.70 = 7,752.20 : x
  2. Step 2: Convert to fraction form
    9,177.80/13,766.70 = 7,752.20/x
  3. Step 3: Cross multiply
    9,177.80x = 13,766.70 × 7,752.20
  4. Step 4: Simplify right side
    9,177.80x = 106,722,211.74
  5. Step 5: Solve for x
    x = 106,722,211.74/9,177.80
  6. Step 6: Final answer
    x = 11,628.30

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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.