Home / 10,488.96-15,721.92-4,641.12

Finding the Fourth Proportional to 10,488.96, 15,721.92 and 4,641.12

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Solution

The fourth proportional to 10,488.96, 15,721.92 and 4,641.12 is: 6,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.96 : 15,721.92 = 4,641.12 : x
  2. Step 2: Convert to fraction form
    10,488.96/15,721.92 = 4,641.12/x
  3. Step 3: Cross multiply
    10,488.96x = 15,721.92 × 4,641.12
  4. Step 4: Simplify right side
    10,488.96x = 72,967,317.35
  5. Step 5: Solve for x
    x = 72,967,317.35/10,488.96
  6. Step 6: Final answer
    x = 6,956.58

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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.