Home / 15,222,376-21,007,514.40-8,347,121.92

Finding the Fourth Proportional to 15,222,376, 21,007,514.40 and 8,347,121.92

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Solution

The fourth proportional to 15,222,376, 21,007,514.40 and 8,347,121.92 is: 11,519,376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222,376 : 21,007,514.40 = 8,347,121.92 : x
  2. Step 2: Convert to fraction form
    15,222,376/21,007,514.40 = 8,347,121.92/x
  3. Step 3: Cross multiply
    15,222,376x = 21,007,514.40 × 8,347,121.92
  4. Step 4: Simplify right side
    15,222,376x = 175,352,283,932,955.62
  5. Step 5: Solve for x
    x = 175,352,283,932,955.62/15,222,376
  6. Step 6: Final answer
    x = 11,519,376.73

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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.