Home / 11,180.74-15,428.41-6,144.90

Finding the Fourth Proportional to 11,180.74, 15,428.41 and 6,144.90

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Solution

The fourth proportional to 11,180.74, 15,428.41 and 6,144.90 is: 8,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.74 : 15,428.41 = 6,144.90 : x
  2. Step 2: Convert to fraction form
    11,180.74/15,428.41 = 6,144.90/x
  3. Step 3: Cross multiply
    11,180.74x = 15,428.41 × 6,144.90
  4. Step 4: Simplify right side
    11,180.74x = 94,806,036.61
  5. Step 5: Solve for x
    x = 94,806,036.61/11,180.74
  6. Step 6: Final answer
    x = 8,479.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.