Home / 9,902.22-13,665.40-5,426.36

Finding the Fourth Proportional to 9,902.22, 13,665.40 and 5,426.36

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Solution

The fourth proportional to 9,902.22, 13,665.40 and 5,426.36 is: 7,488.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.22 : 13,665.40 = 5,426.36 : x
  2. Step 2: Convert to fraction form
    9,902.22/13,665.40 = 5,426.36/x
  3. Step 3: Cross multiply
    9,902.22x = 13,665.40 × 5,426.36
  4. Step 4: Simplify right side
    9,902.22x = 74,153,379.94
  5. Step 5: Solve for x
    x = 74,153,379.94/9,902.22
  6. Step 6: Final answer
    x = 7,488.56

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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.