Home / 11,188.04-15,439.54-6,998.68

Finding the Fourth Proportional to 11,188.04, 15,439.54 and 6,998.68

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Solution

The fourth proportional to 11,188.04, 15,439.54 and 6,998.68 is: 9,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.04 : 15,439.54 = 6,998.68 : x
  2. Step 2: Convert to fraction form
    11,188.04/15,439.54 = 6,998.68/x
  3. Step 3: Cross multiply
    11,188.04x = 15,439.54 × 6,998.68
  4. Step 4: Simplify right side
    11,188.04x = 108,056,399.81
  5. Step 5: Solve for x
    x = 108,056,399.81/11,188.04
  6. Step 6: Final answer
    x = 9,658.21

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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.