Home / 11,079.36-15,291.76-6,366.88

Finding the Fourth Proportional to 11,079.36, 15,291.76 and 6,366.88

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Solution

The fourth proportional to 11,079.36, 15,291.76 and 6,366.88 is: 8,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.36 : 15,291.76 = 6,366.88 : x
  2. Step 2: Convert to fraction form
    11,079.36/15,291.76 = 6,366.88/x
  3. Step 3: Cross multiply
    11,079.36x = 15,291.76 × 6,366.88
  4. Step 4: Simplify right side
    11,079.36x = 97,360,800.91
  5. Step 5: Solve for x
    x = 97,360,800.91/11,079.36
  6. Step 6: Final answer
    x = 8,787.58

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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.