Home / 15,171.69-22,767.78-5,311.05

Finding the Fourth Proportional to 15,171.69, 22,767.78 and 5,311.05

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Solution

The fourth proportional to 15,171.69, 22,767.78 and 5,311.05 is: 7,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.69 : 22,767.78 = 5,311.05 : x
  2. Step 2: Convert to fraction form
    15,171.69/22,767.78 = 5,311.05/x
  3. Step 3: Cross multiply
    15,171.69x = 22,767.78 × 5,311.05
  4. Step 4: Simplify right side
    15,171.69x = 120,920,817.97
  5. Step 5: Solve for x
    x = 120,920,817.97/15,171.69
  6. Step 6: Final answer
    x = 7,970.16

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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.