Home / 10,077.21-15,117.03-2,681.81

Finding the Fourth Proportional to 10,077.21, 15,117.03 and 2,681.81

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Solution

The fourth proportional to 10,077.21, 15,117.03 and 2,681.81 is: 4,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,077.21 : 15,117.03 = 2,681.81 : x
  2. Step 2: Convert to fraction form
    10,077.21/15,117.03 = 2,681.81/x
  3. Step 3: Cross multiply
    10,077.21x = 15,117.03 × 2,681.81
  4. Step 4: Simplify right side
    10,077.21x = 40,540,983.33
  5. Step 5: Solve for x
    x = 40,540,983.33/10,077.21
  6. Step 6: Final answer
    x = 4,023.04

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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.