Home / 11,386.80-15,713.87-6,351.35

Finding the Fourth Proportional to 11,386.80, 15,713.87 and 6,351.35

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Solution

The fourth proportional to 11,386.80, 15,713.87 and 6,351.35 is: 8,764.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.80 : 15,713.87 = 6,351.35 : x
  2. Step 2: Convert to fraction form
    11,386.80/15,713.87 = 6,351.35/x
  3. Step 3: Cross multiply
    11,386.80x = 15,713.87 × 6,351.35
  4. Step 4: Simplify right side
    11,386.80x = 99,804,177.90
  5. Step 5: Solve for x
    x = 99,804,177.90/11,386.80
  6. Step 6: Final answer
    x = 8,764.90

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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.