Home / 15,675.60-21,632.64-8,601.96

Finding the Fourth Proportional to 15,675.60, 21,632.64 and 8,601.96

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Solution

The fourth proportional to 15,675.60, 21,632.64 and 8,601.96 is: 11,870.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,675.60 : 21,632.64 = 8,601.96 : x
  2. Step 2: Convert to fraction form
    15,675.60/21,632.64 = 8,601.96/x
  3. Step 3: Cross multiply
    15,675.60x = 21,632.64 × 8,601.96
  4. Step 4: Simplify right side
    15,675.60x = 186,083,103.97
  5. Step 5: Solve for x
    x = 186,083,103.97/15,675.60
  6. Step 6: Final answer
    x = 11,870.88

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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.