Home / 8,488.40-11,712.12-5,343.44

Finding the Fourth Proportional to 8,488.40, 11,712.12 and 5,343.44

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Solution

The fourth proportional to 8,488.40, 11,712.12 and 5,343.44 is: 7,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.40 : 11,712.12 = 5,343.44 : x
  2. Step 2: Convert to fraction form
    8,488.40/11,712.12 = 5,343.44/x
  3. Step 3: Cross multiply
    8,488.40x = 11,712.12 × 5,343.44
  4. Step 4: Simplify right side
    8,488.40x = 62,583,010.49
  5. Step 5: Solve for x
    x = 62,583,010.49/8,488.40
  6. Step 6: Final answer
    x = 7,372.77

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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.