Home / 15,324.20-21,142.54-9,352.88

Finding the Fourth Proportional to 15,324.20, 21,142.54 and 9,352.88

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Solution

The fourth proportional to 15,324.20, 21,142.54 and 9,352.88 is: 12,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.20 : 21,142.54 = 9,352.88 : x
  2. Step 2: Convert to fraction form
    15,324.20/21,142.54 = 9,352.88/x
  3. Step 3: Cross multiply
    15,324.20x = 21,142.54 × 9,352.88
  4. Step 4: Simplify right side
    15,324.20x = 197,743,639.52
  5. Step 5: Solve for x
    x = 197,743,639.52/15,324.20
  6. Step 6: Final answer
    x = 12,904.01

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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.