Home / 9,077.80-13,616.70-7,436.20

Finding the Fourth Proportional to 9,077.80, 13,616.70 and 7,436.20

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Solution

The fourth proportional to 9,077.80, 13,616.70 and 7,436.20 is: 11,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,077.80 : 13,616.70 = 7,436.20 : x
  2. Step 2: Convert to fraction form
    9,077.80/13,616.70 = 7,436.20/x
  3. Step 3: Cross multiply
    9,077.80x = 13,616.70 × 7,436.20
  4. Step 4: Simplify right side
    9,077.80x = 101,256,504.54
  5. Step 5: Solve for x
    x = 101,256,504.54/9,077.80
  6. Step 6: Final answer
    x = 11,154.30

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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.