Home / 11,306.35-15,586.38-7,938.91

Finding the Fourth Proportional to 11,306.35, 15,586.38 and 7,938.91

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Solution

The fourth proportional to 11,306.35, 15,586.38 and 7,938.91 is: 10,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.35 : 15,586.38 = 7,938.91 : x
  2. Step 2: Convert to fraction form
    11,306.35/15,586.38 = 7,938.91/x
  3. Step 3: Cross multiply
    11,306.35x = 15,586.38 × 7,938.91
  4. Step 4: Simplify right side
    11,306.35x = 123,738,828.35
  5. Step 5: Solve for x
    x = 123,738,828.35/11,306.35
  6. Step 6: Final answer
    x = 10,944.19

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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.