Home / 13,278.22-19,926.51-5,487.10

Finding the Fourth Proportional to 13,278.22, 19,926.51 and 5,487.10

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Solution

The fourth proportional to 13,278.22, 19,926.51 and 5,487.10 is: 8,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.22 : 19,926.51 = 5,487.10 : x
  2. Step 2: Convert to fraction form
    13,278.22/19,926.51 = 5,487.10/x
  3. Step 3: Cross multiply
    13,278.22x = 19,926.51 × 5,487.10
  4. Step 4: Simplify right side
    13,278.22x = 109,338,753.02
  5. Step 5: Solve for x
    x = 109,338,753.02/13,278.22
  6. Step 6: Final answer
    x = 8,234.44

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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.