Home / 7,985.85-11,964.18-5,789.13

Finding the Fourth Proportional to 7,985.85, 11,964.18 and 5,789.13

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Solution

The fourth proportional to 7,985.85, 11,964.18 and 5,789.13 is: 8,673.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.85 : 11,964.18 = 5,789.13 : x
  2. Step 2: Convert to fraction form
    7,985.85/11,964.18 = 5,789.13/x
  3. Step 3: Cross multiply
    7,985.85x = 11,964.18 × 5,789.13
  4. Step 4: Simplify right side
    7,985.85x = 69,262,193.36
  5. Step 5: Solve for x
    x = 69,262,193.36/7,985.85
  6. Step 6: Final answer
    x = 8,673.11

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1.5x scale

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.