Home / 11,116.49-15,345.03-6,868.25

Finding the Fourth Proportional to 11,116.49, 15,345.03 and 6,868.25

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Solution

The fourth proportional to 11,116.49, 15,345.03 and 6,868.25 is: 9,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.49 : 15,345.03 = 6,868.25 : x
  2. Step 2: Convert to fraction form
    11,116.49/15,345.03 = 6,868.25/x
  3. Step 3: Cross multiply
    11,116.49x = 15,345.03 × 6,868.25
  4. Step 4: Simplify right side
    11,116.49x = 105,393,502.30
  5. Step 5: Solve for x
    x = 105,393,502.30/11,116.49
  6. Step 6: Final answer
    x = 9,480.83

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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.