Home / 10,964.97-15,134.85-6,984.63

Finding the Fourth Proportional to 10,964.97, 15,134.85 and 6,984.63

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Solution

The fourth proportional to 10,964.97, 15,134.85 and 6,984.63 is: 9,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.97 : 15,134.85 = 6,984.63 : x
  2. Step 2: Convert to fraction form
    10,964.97/15,134.85 = 6,984.63/x
  3. Step 3: Cross multiply
    10,964.97x = 15,134.85 × 6,984.63
  4. Step 4: Simplify right side
    10,964.97x = 105,711,327.36
  5. Step 5: Solve for x
    x = 105,711,327.36/10,964.97
  6. Step 6: Final answer
    x = 9,640.82

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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.