Home / 11,154.28-15,393.90-6,119.48

Finding the Fourth Proportional to 11,154.28, 15,393.90 and 6,119.48

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Solution

The fourth proportional to 11,154.28, 15,393.90 and 6,119.48 is: 8,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.28 : 15,393.90 = 6,119.48 : x
  2. Step 2: Convert to fraction form
    11,154.28/15,393.90 = 6,119.48/x
  3. Step 3: Cross multiply
    11,154.28x = 15,393.90 × 6,119.48
  4. Step 4: Simplify right side
    11,154.28x = 94,202,663.17
  5. Step 5: Solve for x
    x = 94,202,663.17/11,154.28
  6. Step 6: Final answer
    x = 8,445.43

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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.