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Finding the Fourth Proportional to 15,321.66, 22,970.79 and 6,995.90

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Solution

The fourth proportional to 15,321.66, 22,970.79 and 6,995.90 is: 10,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321.66 : 22,970.79 = 6,995.90 : x
  2. Step 2: Convert to fraction form
    15,321.66/22,970.79 = 6,995.90/x
  3. Step 3: Cross multiply
    15,321.66x = 22,970.79 × 6,995.90
  4. Step 4: Simplify right side
    15,321.66x = 160,701,234.91
  5. Step 5: Solve for x
    x = 160,701,234.91/15,321.66
  6. Step 6: Final answer
    x = 10,488.50

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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.