Home / 10,964.95-15,131.76-6,656.79

Finding the Fourth Proportional to 10,964.95, 15,131.76 and 6,656.79

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Solution

The fourth proportional to 10,964.95, 15,131.76 and 6,656.79 is: 9,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.95 : 15,131.76 = 6,656.79 : x
  2. Step 2: Convert to fraction form
    10,964.95/15,131.76 = 6,656.79/x
  3. Step 3: Cross multiply
    10,964.95x = 15,131.76 × 6,656.79
  4. Step 4: Simplify right side
    10,964.95x = 100,728,948.65
  5. Step 5: Solve for x
    x = 100,728,948.65/10,964.95
  6. Step 6: Final answer
    x = 9,186.45

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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.