Home / 12,405.60-17,117.94-7,099.44

Finding the Fourth Proportional to 12,405.60, 17,117.94 and 7,099.44

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Solution

The fourth proportional to 12,405.60, 17,117.94 and 7,099.44 is: 9,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.60 : 17,117.94 = 7,099.44 : x
  2. Step 2: Convert to fraction form
    12,405.60/17,117.94 = 7,099.44/x
  3. Step 3: Cross multiply
    12,405.60x = 17,117.94 × 7,099.44
  4. Step 4: Simplify right side
    12,405.60x = 121,527,787.95
  5. Step 5: Solve for x
    x = 121,527,787.95/12,405.60
  6. Step 6: Final answer
    x = 9,796.20

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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.