Home / 9,987.15-13,786.71-6,452.10

Finding the Fourth Proportional to 9,987.15, 13,786.71 and 6,452.10

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Solution

The fourth proportional to 9,987.15, 13,786.71 and 6,452.10 is: 8,906.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.15 : 13,786.71 = 6,452.10 : x
  2. Step 2: Convert to fraction form
    9,987.15/13,786.71 = 6,452.10/x
  3. Step 3: Cross multiply
    9,987.15x = 13,786.71 × 6,452.10
  4. Step 4: Simplify right side
    9,987.15x = 88,953,231.59
  5. Step 5: Solve for x
    x = 88,953,231.59/9,987.15
  6. Step 6: Final answer
    x = 8,906.77

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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.