Home / 15,248.88-21,043.56-8,535.13

Finding the Fourth Proportional to 15,248.88, 21,043.56 and 8,535.13

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Solution

The fourth proportional to 15,248.88, 21,043.56 and 8,535.13 is: 11,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,248.88 : 21,043.56 = 8,535.13 : x
  2. Step 2: Convert to fraction form
    15,248.88/21,043.56 = 8,535.13/x
  3. Step 3: Cross multiply
    15,248.88x = 21,043.56 × 8,535.13
  4. Step 4: Simplify right side
    15,248.88x = 179,609,558.85
  5. Step 5: Solve for x
    x = 179,609,558.85/15,248.88
  6. Step 6: Final answer
    x = 11,778.54

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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.