Home / 9,912.83-13,679.84-5,436.29

Finding the Fourth Proportional to 9,912.83, 13,679.84 and 5,436.29

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Solution

The fourth proportional to 9,912.83, 13,679.84 and 5,436.29 is: 7,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.83 : 13,679.84 = 5,436.29 : x
  2. Step 2: Convert to fraction form
    9,912.83/13,679.84 = 5,436.29/x
  3. Step 3: Cross multiply
    9,912.83x = 13,679.84 × 5,436.29
  4. Step 4: Simplify right side
    9,912.83x = 74,367,548.23
  5. Step 5: Solve for x
    x = 74,367,548.23/9,912.83
  6. Step 6: Final answer
    x = 7,502.15

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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.