Home / 12,340.82-18,551.37-9,902.36

Finding the Fourth Proportional to 12,340.82, 18,551.37 and 9,902.36

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Solution

The fourth proportional to 12,340.82, 18,551.37 and 9,902.36 is: 14,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.82 : 18,551.37 = 9,902.36 : x
  2. Step 2: Convert to fraction form
    12,340.82/18,551.37 = 9,902.36/x
  3. Step 3: Cross multiply
    12,340.82x = 18,551.37 × 9,902.36
  4. Step 4: Simplify right side
    12,340.82x = 183,702,344.23
  5. Step 5: Solve for x
    x = 183,702,344.23/12,340.82
  6. Step 6: Final answer
    x = 14,885.75

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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.