Home / 10,497.20-14,486.04-5,781.38

Finding the Fourth Proportional to 10,497.20, 14,486.04 and 5,781.38

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Solution

The fourth proportional to 10,497.20, 14,486.04 and 5,781.38 is: 7,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,497.20 : 14,486.04 = 5,781.38 : x
  2. Step 2: Convert to fraction form
    10,497.20/14,486.04 = 5,781.38/x
  3. Step 3: Cross multiply
    10,497.20x = 14,486.04 × 5,781.38
  4. Step 4: Simplify right side
    10,497.20x = 83,749,301.94
  5. Step 5: Solve for x
    x = 83,749,301.94/10,497.20
  6. Step 6: Final answer
    x = 7,978.25

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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.