Home / 8,323.20-11,478.51-5,488.56

Finding the Fourth Proportional to 8,323.20, 11,478.51 and 5,488.56

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Solution

The fourth proportional to 8,323.20, 11,478.51 and 5,488.56 is: 7,569.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.20 : 11,478.51 = 5,488.56 : x
  2. Step 2: Convert to fraction form
    8,323.20/11,478.51 = 5,488.56/x
  3. Step 3: Cross multiply
    8,323.20x = 11,478.51 × 5,488.56
  4. Step 4: Simplify right side
    8,323.20x = 63,000,490.85
  5. Step 5: Solve for x
    x = 63,000,490.85/8,323.20
  6. Step 6: Final answer
    x = 7,569.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.