Home / 10,480.80-15,717.86-3,459.51

Finding the Fourth Proportional to 10,480.80, 15,717.86 and 3,459.51

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Solution

The fourth proportional to 10,480.80, 15,717.86 and 3,459.51 is: 5,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.80 : 15,717.86 = 3,459.51 : x
  2. Step 2: Convert to fraction form
    10,480.80/15,717.86 = 3,459.51/x
  3. Step 3: Cross multiply
    10,480.80x = 15,717.86 × 3,459.51
  4. Step 4: Simplify right side
    10,480.80x = 54,376,089.52
  5. Step 5: Solve for x
    x = 54,376,089.52/10,480.80
  6. Step 6: Final answer
    x = 5,188.16

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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.