Home / 8,711.74-13,069.81-3,780.18

Finding the Fourth Proportional to 8,711.74, 13,069.81 and 3,780.18

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Solution

The fourth proportional to 8,711.74, 13,069.81 and 3,780.18 is: 5,671.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.74 : 13,069.81 = 3,780.18 : x
  2. Step 2: Convert to fraction form
    8,711.74/13,069.81 = 3,780.18/x
  3. Step 3: Cross multiply
    8,711.74x = 13,069.81 × 3,780.18
  4. Step 4: Simplify right side
    8,711.74x = 49,406,234.37
  5. Step 5: Solve for x
    x = 49,406,234.37/8,711.74
  6. Step 6: Final answer
    x = 5,671.22

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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.