Home / 26,248.38-39,372.56-7,780.38

Finding the Fourth Proportional to 26,248.38, 39,372.56 and 7,780.38

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Solution

The fourth proportional to 26,248.38, 39,372.56 and 7,780.38 is: 11,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,248.38 : 39,372.56 = 7,780.38 : x
  2. Step 2: Convert to fraction form
    26,248.38/39,372.56 = 7,780.38/x
  3. Step 3: Cross multiply
    26,248.38x = 39,372.56 × 7,780.38
  4. Step 4: Simplify right side
    26,248.38x = 306,333,478.37
  5. Step 5: Solve for x
    x = 306,333,478.37/26,248.38
  6. Step 6: Final answer
    x = 11,670.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.