Home / 6,711.19-10,066.78-1,781.21

Finding the Fourth Proportional to 6,711.19, 10,066.78 and 1,781.21

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Solution

The fourth proportional to 6,711.19, 10,066.78 and 1,781.21 is: 2,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,711.19 : 10,066.78 = 1,781.21 : x
  2. Step 2: Convert to fraction form
    6,711.19/10,066.78 = 1,781.21/x
  3. Step 3: Cross multiply
    6,711.19x = 10,066.78 × 1,781.21
  4. Step 4: Simplify right side
    6,711.19x = 17,931,069.92
  5. Step 5: Solve for x
    x = 17,931,069.92/6,711.19
  6. Step 6: Final answer
    x = 2,671.82

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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.