Home / 7,851.68-11,781.56-4,341.03

Finding the Fourth Proportional to 7,851.68, 11,781.56 and 4,341.03

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Solution

The fourth proportional to 7,851.68, 11,781.56 and 4,341.03 is: 6,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.68 : 11,781.56 = 4,341.03 : x
  2. Step 2: Convert to fraction form
    7,851.68/11,781.56 = 4,341.03/x
  3. Step 3: Cross multiply
    7,851.68x = 11,781.56 × 4,341.03
  4. Step 4: Simplify right side
    7,851.68x = 51,144,105.41
  5. Step 5: Solve for x
    x = 51,144,105.41/7,851.68
  6. Step 6: Final answer
    x = 6,513.78

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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.