Home / 15,046.84-20,766.30-10,857.72

Finding the Fourth Proportional to 15,046.84, 20,766.30 and 10,857.72

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Solution

The fourth proportional to 15,046.84, 20,766.30 and 10,857.72 is: 14,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.84 : 20,766.30 = 10,857.72 : x
  2. Step 2: Convert to fraction form
    15,046.84/20,766.30 = 10,857.72/x
  3. Step 3: Cross multiply
    15,046.84x = 20,766.30 × 10,857.72
  4. Step 4: Simplify right side
    15,046.84x = 225,474,670.84
  5. Step 5: Solve for x
    x = 225,474,670.84/15,046.84
  6. Step 6: Final answer
    x = 14,984.85

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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.