Home / 13,788.08-19,034.16-8,487.44

Finding the Fourth Proportional to 13,788.08, 19,034.16 and 8,487.44

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Solution

The fourth proportional to 13,788.08, 19,034.16 and 8,487.44 is: 11,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.08 : 19,034.16 = 8,487.44 : x
  2. Step 2: Convert to fraction form
    13,788.08/19,034.16 = 8,487.44/x
  3. Step 3: Cross multiply
    13,788.08x = 19,034.16 × 8,487.44
  4. Step 4: Simplify right side
    13,788.08x = 161,551,290.95
  5. Step 5: Solve for x
    x = 161,551,290.95/13,788.08
  6. Step 6: Final answer
    x = 11,716.74

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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.