Home / 10,654.40-15,981.77-4,412.91

Finding the Fourth Proportional to 10,654.40, 15,981.77 and 4,412.91

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Solution

The fourth proportional to 10,654.40, 15,981.77 and 4,412.91 is: 6,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.40 : 15,981.77 = 4,412.91 : x
  2. Step 2: Convert to fraction form
    10,654.40/15,981.77 = 4,412.91/x
  3. Step 3: Cross multiply
    10,654.40x = 15,981.77 × 4,412.91
  4. Step 4: Simplify right side
    10,654.40x = 70,526,112.65
  5. Step 5: Solve for x
    x = 70,526,112.65/10,654.40
  6. Step 6: Final answer
    x = 6,619.44

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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.