Home / 11,180.28-15,428.40-6,144.50

Finding the Fourth Proportional to 11,180.28, 15,428.40 and 6,144.50

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Solution

The fourth proportional to 11,180.28, 15,428.40 and 6,144.50 is: 8,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.28 : 15,428.40 = 6,144.50 : x
  2. Step 2: Convert to fraction form
    11,180.28/15,428.40 = 6,144.50/x
  3. Step 3: Cross multiply
    11,180.28x = 15,428.40 × 6,144.50
  4. Step 4: Simplify right side
    11,180.28x = 94,799,803.80
  5. Step 5: Solve for x
    x = 94,799,803.80/11,180.28
  6. Step 6: Final answer
    x = 8,479.20

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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.