Home / 15,462.57-21,338.15-8,388.95

Finding the Fourth Proportional to 15,462.57, 21,338.15 and 8,388.95

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Solution

The fourth proportional to 15,462.57, 21,338.15 and 8,388.95 is: 11,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.57 : 21,338.15 = 8,388.95 : x
  2. Step 2: Convert to fraction form
    15,462.57/21,338.15 = 8,388.95/x
  3. Step 3: Cross multiply
    15,462.57x = 21,338.15 × 8,388.95
  4. Step 4: Simplify right side
    15,462.57x = 179,004,587.72
  5. Step 5: Solve for x
    x = 179,004,587.72/15,462.57
  6. Step 6: Final answer
    x = 11,576.64

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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.