Home / 12,740.07-19,085.25-8,344.20

Finding the Fourth Proportional to 12,740.07, 19,085.25 and 8,344.20

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Solution

The fourth proportional to 12,740.07, 19,085.25 and 8,344.20 is: 12,500.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.07 : 19,085.25 = 8,344.20 : x
  2. Step 2: Convert to fraction form
    12,740.07/19,085.25 = 8,344.20/x
  3. Step 3: Cross multiply
    12,740.07x = 19,085.25 × 8,344.20
  4. Step 4: Simplify right side
    12,740.07x = 159,251,143.05
  5. Step 5: Solve for x
    x = 159,251,143.05/12,740.07
  6. Step 6: Final answer
    x = 12,500.02

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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.