Home / 11,438.28-15,786.50-6,964.65

Finding the Fourth Proportional to 11,438.28, 15,786.50 and 6,964.65

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Solution

The fourth proportional to 11,438.28, 15,786.50 and 6,964.65 is: 9,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.28 : 15,786.50 = 6,964.65 : x
  2. Step 2: Convert to fraction form
    11,438.28/15,786.50 = 6,964.65/x
  3. Step 3: Cross multiply
    11,438.28x = 15,786.50 × 6,964.65
  4. Step 4: Simplify right side
    11,438.28x = 109,947,412.40
  5. Step 5: Solve for x
    x = 109,947,412.40/11,438.28
  6. Step 6: Final answer
    x = 9,612.23

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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.