Home / 15,375.96-21,219.06-9,088.92

Finding the Fourth Proportional to 15,375.96, 21,219.06 and 9,088.92

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Solution

The fourth proportional to 15,375.96, 21,219.06 and 9,088.92 is: 12,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,375.96 : 21,219.06 = 9,088.92 : x
  2. Step 2: Convert to fraction form
    15,375.96/21,219.06 = 9,088.92/x
  3. Step 3: Cross multiply
    15,375.96x = 21,219.06 × 9,088.92
  4. Step 4: Simplify right side
    15,375.96x = 192,858,338.82
  5. Step 5: Solve for x
    x = 192,858,338.82/15,375.96
  6. Step 6: Final answer
    x = 12,542.85

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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.