Home / 9,851.68-13,590.03-6,660.78

Finding the Fourth Proportional to 9,851.68, 13,590.03 and 6,660.78

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Solution

The fourth proportional to 9,851.68, 13,590.03 and 6,660.78 is: 9,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,851.68 : 13,590.03 = 6,660.78 : x
  2. Step 2: Convert to fraction form
    9,851.68/13,590.03 = 6,660.78/x
  3. Step 3: Cross multiply
    9,851.68x = 13,590.03 × 6,660.78
  4. Step 4: Simplify right side
    9,851.68x = 90,520,132.07
  5. Step 5: Solve for x
    x = 90,520,132.07/9,851.68
  6. Step 6: Final answer
    x = 9,188.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.