Home / 10,608.48-15,919.98-5,418

Finding the Fourth Proportional to 10,608.48, 15,919.98 and 5,418

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Solution

The fourth proportional to 10,608.48, 15,919.98 and 5,418 is: 8,130.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,608.48 : 15,919.98 = 5,418 : x
  2. Step 2: Convert to fraction form
    10,608.48/15,919.98 = 5,418/x
  3. Step 3: Cross multiply
    10,608.48x = 15,919.98 × 5,418
  4. Step 4: Simplify right side
    10,608.48x = 86,254,451.64
  5. Step 5: Solve for x
    x = 86,254,451.64/10,608.48
  6. Step 6: Final answer
    x = 8,130.71

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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.