Home / 11,499.04-15,868.41-6,394.21

Finding the Fourth Proportional to 11,499.04, 15,868.41 and 6,394.21

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Solution

The fourth proportional to 11,499.04, 15,868.41 and 6,394.21 is: 8,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,499.04 : 15,868.41 = 6,394.21 : x
  2. Step 2: Convert to fraction form
    11,499.04/15,868.41 = 6,394.21/x
  3. Step 3: Cross multiply
    11,499.04x = 15,868.41 × 6,394.21
  4. Step 4: Simplify right side
    11,499.04x = 101,465,945.91
  5. Step 5: Solve for x
    x = 101,465,945.91/11,499.04
  6. Step 6: Final answer
    x = 8,823.86

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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.