Home / 11,113.75-16,656.27-8,318.53

Finding the Fourth Proportional to 11,113.75, 16,656.27 and 8,318.53

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Solution

The fourth proportional to 11,113.75, 16,656.27 and 8,318.53 is: 12,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.75 : 16,656.27 = 8,318.53 : x
  2. Step 2: Convert to fraction form
    11,113.75/16,656.27 = 8,318.53/x
  3. Step 3: Cross multiply
    11,113.75x = 16,656.27 × 8,318.53
  4. Step 4: Simplify right side
    11,113.75x = 138,555,681.68
  5. Step 5: Solve for x
    x = 138,555,681.68/11,113.75
  6. Step 6: Final answer
    x = 12,467.05

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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.