Home / 14,311.59-19,775.66-11,191.47

Finding the Fourth Proportional to 14,311.59, 19,775.66 and 11,191.47

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Solution

The fourth proportional to 14,311.59, 19,775.66 and 11,191.47 is: 15,464.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.59 : 19,775.66 = 11,191.47 : x
  2. Step 2: Convert to fraction form
    14,311.59/19,775.66 = 11,191.47/x
  3. Step 3: Cross multiply
    14,311.59x = 19,775.66 × 11,191.47
  4. Step 4: Simplify right side
    14,311.59x = 221,318,649.66
  5. Step 5: Solve for x
    x = 221,318,649.66/14,311.59
  6. Step 6: Final answer
    x = 15,464.29

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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.