Home / 12,964.08-17,878.80-10,972.56

Finding the Fourth Proportional to 12,964.08, 17,878.80 and 10,972.56

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Solution

The fourth proportional to 12,964.08, 17,878.80 and 10,972.56 is: 15,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.08 : 17,878.80 = 10,972.56 : x
  2. Step 2: Convert to fraction form
    12,964.08/17,878.80 = 10,972.56/x
  3. Step 3: Cross multiply
    12,964.08x = 17,878.80 × 10,972.56
  4. Step 4: Simplify right side
    12,964.08x = 196,176,205.73
  5. Step 5: Solve for x
    x = 196,176,205.73/12,964.08
  6. Step 6: Final answer
    x = 15,132.29

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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.