Home / 10,076.81-15,115.20-2,681.27

Finding the Fourth Proportional to 10,076.81, 15,115.20 and 2,681.27

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Solution

The fourth proportional to 10,076.81, 15,115.20 and 2,681.27 is: 4,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.81 : 15,115.20 = 2,681.27 : x
  2. Step 2: Convert to fraction form
    10,076.81/15,115.20 = 2,681.27/x
  3. Step 3: Cross multiply
    10,076.81x = 15,115.20 × 2,681.27
  4. Step 4: Simplify right side
    10,076.81x = 40,527,881.11
  5. Step 5: Solve for x
    x = 40,527,881.11/10,076.81
  6. Step 6: Final answer
    x = 4,021.90

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1.5x scale

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.