Home / 11,134.64-15,376.14-8,335.28

Finding the Fourth Proportional to 11,134.64, 15,376.14 and 8,335.28

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Solution

The fourth proportional to 11,134.64, 15,376.14 and 8,335.28 is: 11,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.64 : 15,376.14 = 8,335.28 : x
  2. Step 2: Convert to fraction form
    11,134.64/15,376.14 = 8,335.28/x
  3. Step 3: Cross multiply
    11,134.64x = 15,376.14 × 8,335.28
  4. Step 4: Simplify right side
    11,134.64x = 128,164,439.40
  5. Step 5: Solve for x
    x = 128,164,439.40/11,134.64
  6. Step 6: Final answer
    x = 11,510.42

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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.