Home / 15,104.39-20,844.50-9,137.15

Finding the Fourth Proportional to 15,104.39, 20,844.50 and 9,137.15

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Solution

The fourth proportional to 15,104.39, 20,844.50 and 9,137.15 is: 12,609.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.39 : 20,844.50 = 9,137.15 : x
  2. Step 2: Convert to fraction form
    15,104.39/20,844.50 = 9,137.15/x
  3. Step 3: Cross multiply
    15,104.39x = 20,844.50 × 9,137.15
  4. Step 4: Simplify right side
    15,104.39x = 190,459,323.18
  5. Step 5: Solve for x
    x = 190,459,323.18/15,104.39
  6. Step 6: Final answer
    x = 12,609.53

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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.