Home / 15,451.95-21,324.11-8,738.58

Finding the Fourth Proportional to 15,451.95, 21,324.11 and 8,738.58

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Solution

The fourth proportional to 15,451.95, 21,324.11 and 8,738.58 is: 12,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.95 : 21,324.11 = 8,738.58 : x
  2. Step 2: Convert to fraction form
    15,451.95/21,324.11 = 8,738.58/x
  3. Step 3: Cross multiply
    15,451.95x = 21,324.11 × 8,738.58
  4. Step 4: Simplify right side
    15,451.95x = 186,342,406.64
  5. Step 5: Solve for x
    x = 186,342,406.64/15,451.95
  6. Step 6: Final answer
    x = 12,059.47

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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.