Home / 11,586.78-15,983.73-6,872.58

Finding the Fourth Proportional to 11,586.78, 15,983.73 and 6,872.58

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Solution

The fourth proportional to 11,586.78, 15,983.73 and 6,872.58 is: 9,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.78 : 15,983.73 = 6,872.58 : x
  2. Step 2: Convert to fraction form
    11,586.78/15,983.73 = 6,872.58/x
  3. Step 3: Cross multiply
    11,586.78x = 15,983.73 × 6,872.58
  4. Step 4: Simplify right side
    11,586.78x = 109,849,463.12
  5. Step 5: Solve for x
    x = 109,849,463.12/11,586.78
  6. Step 6: Final answer
    x = 9,480.59

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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.