Home / 8,402.28-12,589.56-4,882.41

Finding the Fourth Proportional to 8,402.28, 12,589.56 and 4,882.41

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Solution

The fourth proportional to 8,402.28, 12,589.56 and 4,882.41 is: 7,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.28 : 12,589.56 = 4,882.41 : x
  2. Step 2: Convert to fraction form
    8,402.28/12,589.56 = 4,882.41/x
  3. Step 3: Cross multiply
    8,402.28x = 12,589.56 × 4,882.41
  4. Step 4: Simplify right side
    8,402.28x = 61,467,369.23
  5. Step 5: Solve for x
    x = 61,467,369.23/8,402.28
  6. Step 6: Final answer
    x = 7,315.56

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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.