Home / 11,521.92-15,905.52-7,335.84

Finding the Fourth Proportional to 11,521.92, 15,905.52 and 7,335.84

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Solution

The fourth proportional to 11,521.92, 15,905.52 and 7,335.84 is: 10,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.92 : 15,905.52 = 7,335.84 : x
  2. Step 2: Convert to fraction form
    11,521.92/15,905.52 = 7,335.84/x
  3. Step 3: Cross multiply
    11,521.92x = 15,905.52 × 7,335.84
  4. Step 4: Simplify right side
    11,521.92x = 116,680,349.84
  5. Step 5: Solve for x
    x = 116,680,349.84/11,521.92
  6. Step 6: Final answer
    x = 10,126.81

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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.