Home / 11,419.11-15,751.80-6,702.48

Finding the Fourth Proportional to 11,419.11, 15,751.80 and 6,702.48

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Solution

The fourth proportional to 11,419.11, 15,751.80 and 6,702.48 is: 9,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.11 : 15,751.80 = 6,702.48 : x
  2. Step 2: Convert to fraction form
    11,419.11/15,751.80 = 6,702.48/x
  3. Step 3: Cross multiply
    11,419.11x = 15,751.80 × 6,702.48
  4. Step 4: Simplify right side
    11,419.11x = 105,576,124.46
  5. Step 5: Solve for x
    x = 105,576,124.46/11,419.11
  6. Step 6: Final answer
    x = 9,245.57

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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.