Home / 10,791.29-14,888.41-6,311.87

Finding the Fourth Proportional to 10,791.29, 14,888.41 and 6,311.87

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Solution

The fourth proportional to 10,791.29, 14,888.41 and 6,311.87 is: 8,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.29 : 14,888.41 = 6,311.87 : x
  2. Step 2: Convert to fraction form
    10,791.29/14,888.41 = 6,311.87/x
  3. Step 3: Cross multiply
    10,791.29x = 14,888.41 × 6,311.87
  4. Step 4: Simplify right side
    10,791.29x = 93,973,618.20
  5. Step 5: Solve for x
    x = 93,973,618.20/10,791.29
  6. Step 6: Final answer
    x = 8,708.29

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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.