Home / 11,518.31-17,280.30-3,727.13

Finding the Fourth Proportional to 11,518.31, 17,280.30 and 3,727.13

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Solution

The fourth proportional to 11,518.31, 17,280.30 and 3,727.13 is: 5,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.31 : 17,280.30 = 3,727.13 : x
  2. Step 2: Convert to fraction form
    11,518.31/17,280.30 = 3,727.13/x
  3. Step 3: Cross multiply
    11,518.31x = 17,280.30 × 3,727.13
  4. Step 4: Simplify right side
    11,518.31x = 64,405,852.11
  5. Step 5: Solve for x
    x = 64,405,852.11/11,518.31
  6. Step 6: Final answer
    x = 5,591.60

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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.