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Finding the Fourth Proportional to 15,113.52, 20,867.04 and 9,450.72

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Solution

The fourth proportional to 15,113.52, 20,867.04 and 9,450.72 is: 13,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.52 : 20,867.04 = 9,450.72 : x
  2. Step 2: Convert to fraction form
    15,113.52/20,867.04 = 9,450.72/x
  3. Step 3: Cross multiply
    15,113.52x = 20,867.04 × 9,450.72
  4. Step 4: Simplify right side
    15,113.52x = 197,208,552.27
  5. Step 5: Solve for x
    x = 197,208,552.27/15,113.52
  6. Step 6: Final answer
    x = 13,048.49

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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.