Home / 11,503.68-15,852.96-8,185.92

Finding the Fourth Proportional to 11,503.68, 15,852.96 and 8,185.92

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Solution

The fourth proportional to 11,503.68, 15,852.96 and 8,185.92 is: 11,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.68 : 15,852.96 = 8,185.92 : x
  2. Step 2: Convert to fraction form
    11,503.68/15,852.96 = 8,185.92/x
  3. Step 3: Cross multiply
    11,503.68x = 15,852.96 × 8,185.92
  4. Step 4: Simplify right side
    11,503.68x = 129,771,062.32
  5. Step 5: Solve for x
    x = 129,771,062.32/11,503.68
  6. Step 6: Final answer
    x = 11,280.83

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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.