Home / 10,631.61-15,932.30-7,836.30

Finding the Fourth Proportional to 10,631.61, 15,932.30 and 7,836.30

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Solution

The fourth proportional to 10,631.61, 15,932.30 and 7,836.30 is: 11,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.61 : 15,932.30 = 7,836.30 : x
  2. Step 2: Convert to fraction form
    10,631.61/15,932.30 = 7,836.30/x
  3. Step 3: Cross multiply
    10,631.61x = 15,932.30 × 7,836.30
  4. Step 4: Simplify right side
    10,631.61x = 124,850,243.31
  5. Step 5: Solve for x
    x = 124,850,243.31/10,631.61
  6. Step 6: Final answer
    x = 11,743.31

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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.