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Finding the Fourth Proportional to 15,228.88, 22,810.94 and 7,319.78

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Solution

The fourth proportional to 15,228.88, 22,810.94 and 7,319.78 is: 10,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.88 : 22,810.94 = 7,319.78 : x
  2. Step 2: Convert to fraction form
    15,228.88/22,810.94 = 7,319.78/x
  3. Step 3: Cross multiply
    15,228.88x = 22,810.94 × 7,319.78
  4. Step 4: Simplify right side
    15,228.88x = 166,971,062.39
  5. Step 5: Solve for x
    x = 166,971,062.39/15,228.88
  6. Step 6: Final answer
    x = 10,964.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.