Home / 15,445.44-21,314.79-9,070.56

Finding the Fourth Proportional to 15,445.44, 21,314.79 and 9,070.56

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Solution

The fourth proportional to 15,445.44, 21,314.79 and 9,070.56 is: 12,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.44 : 21,314.79 = 9,070.56 : x
  2. Step 2: Convert to fraction form
    15,445.44/21,314.79 = 9,070.56/x
  3. Step 3: Cross multiply
    15,445.44x = 21,314.79 × 9,070.56
  4. Step 4: Simplify right side
    15,445.44x = 193,337,081.58
  5. Step 5: Solve for x
    x = 193,337,081.58/15,445.44
  6. Step 6: Final answer
    x = 12,517.42

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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.