Home / 8,488.20-11,721.18-5,306.94

Finding the Fourth Proportional to 8,488.20, 11,721.18 and 5,306.94

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Solution

The fourth proportional to 8,488.20, 11,721.18 and 5,306.94 is: 7,328.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.20 : 11,721.18 = 5,306.94 : x
  2. Step 2: Convert to fraction form
    8,488.20/11,721.18 = 5,306.94/x
  3. Step 3: Cross multiply
    8,488.20x = 11,721.18 × 5,306.94
  4. Step 4: Simplify right side
    8,488.20x = 62,203,598.99
  5. Step 5: Solve for x
    x = 62,203,598.99/8,488.20
  6. Step 6: Final answer
    x = 7,328.24

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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.