Home / 10,972.64-15,144.60-6,992.84

Finding the Fourth Proportional to 10,972.64, 15,144.60 and 6,992.84

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Solution

The fourth proportional to 10,972.64, 15,144.60 and 6,992.84 is: 9,651.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.64 : 15,144.60 = 6,992.84 : x
  2. Step 2: Convert to fraction form
    10,972.64/15,144.60 = 6,992.84/x
  3. Step 3: Cross multiply
    10,972.64x = 15,144.60 × 6,992.84
  4. Step 4: Simplify right side
    10,972.64x = 105,903,764.66
  5. Step 5: Solve for x
    x = 105,903,764.66/10,972.64
  6. Step 6: Final answer
    x = 9,651.62

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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.