Home / 8,345.36-11,517.90-4,987.10

Finding the Fourth Proportional to 8,345.36, 11,517.90 and 4,987.10

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Solution

The fourth proportional to 8,345.36, 11,517.90 and 4,987.10 is: 6,882.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.36 : 11,517.90 = 4,987.10 : x
  2. Step 2: Convert to fraction form
    8,345.36/11,517.90 = 4,987.10/x
  3. Step 3: Cross multiply
    8,345.36x = 11,517.90 × 4,987.10
  4. Step 4: Simplify right side
    8,345.36x = 57,440,919.09
  5. Step 5: Solve for x
    x = 57,440,919.09/8,345.36
  6. Step 6: Final answer
    x = 6,882.98

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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.