Home / 15,129.57-22,645.80-8,091.99

Finding the Fourth Proportional to 15,129.57, 22,645.80 and 8,091.99

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Solution

The fourth proportional to 15,129.57, 22,645.80 and 8,091.99 is: 12,112.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.57 : 22,645.80 = 8,091.99 : x
  2. Step 2: Convert to fraction form
    15,129.57/22,645.80 = 8,091.99/x
  3. Step 3: Cross multiply
    15,129.57x = 22,645.80 × 8,091.99
  4. Step 4: Simplify right side
    15,129.57x = 183,249,587.14
  5. Step 5: Solve for x
    x = 183,249,587.14/15,129.57
  6. Step 6: Final answer
    x = 12,112.02

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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.