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Finding the Fourth Proportional to 15,651.42, 23,490.86 and 8,260.85

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Solution

The fourth proportional to 15,651.42, 23,490.86 and 8,260.85 is: 12,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.42 : 23,490.86 = 8,260.85 : x
  2. Step 2: Convert to fraction form
    15,651.42/23,490.86 = 8,260.85/x
  3. Step 3: Cross multiply
    15,651.42x = 23,490.86 × 8,260.85
  4. Step 4: Simplify right side
    15,651.42x = 194,054,312.07
  5. Step 5: Solve for x
    x = 194,054,312.07/15,651.42
  6. Step 6: Final answer
    x = 12,398.51

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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.