Home / 15,462.47-21,338.21-8,747.96

Finding the Fourth Proportional to 15,462.47, 21,338.21 and 8,747.96

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Solution

The fourth proportional to 15,462.47, 21,338.21 and 8,747.96 is: 12,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.47 : 21,338.21 = 8,747.96 : x
  2. Step 2: Convert to fraction form
    15,462.47/21,338.21 = 8,747.96/x
  3. Step 3: Cross multiply
    15,462.47x = 21,338.21 × 8,747.96
  4. Step 4: Simplify right side
    15,462.47x = 186,665,722.73
  5. Step 5: Solve for x
    x = 186,665,722.73/15,462.47
  6. Step 6: Final answer
    x = 12,072.18

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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.