Home / 7,686.79-11,521.96-5,488.85

Finding the Fourth Proportional to 7,686.79, 11,521.96 and 5,488.85

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Solution

The fourth proportional to 7,686.79, 11,521.96 and 5,488.85 is: 8,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.79 : 11,521.96 = 5,488.85 : x
  2. Step 2: Convert to fraction form
    7,686.79/11,521.96 = 5,488.85/x
  3. Step 3: Cross multiply
    7,686.79x = 11,521.96 × 5,488.85
  4. Step 4: Simplify right side
    7,686.79x = 63,242,310.15
  5. Step 5: Solve for x
    x = 63,242,310.15/7,686.79
  6. Step 6: Final answer
    x = 8,227.40

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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.