Home / 7,776.06-11,668.95-3,159.06

Finding the Fourth Proportional to 7,776.06, 11,668.95 and 3,159.06

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Solution

The fourth proportional to 7,776.06, 11,668.95 and 3,159.06 is: 4,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.06 : 11,668.95 = 3,159.06 : x
  2. Step 2: Convert to fraction form
    7,776.06/11,668.95 = 3,159.06/x
  3. Step 3: Cross multiply
    7,776.06x = 11,668.95 × 3,159.06
  4. Step 4: Simplify right side
    7,776.06x = 36,862,913.19
  5. Step 5: Solve for x
    x = 36,862,913.19/7,776.06
  6. Step 6: Final answer
    x = 4,740.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.