Home / 8,523.20-11,763.75-4,987.28

Finding the Fourth Proportional to 8,523.20, 11,763.75 and 4,987.28

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Solution

The fourth proportional to 8,523.20, 11,763.75 and 4,987.28 is: 6,883.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.20 : 11,763.75 = 4,987.28 : x
  2. Step 2: Convert to fraction form
    8,523.20/11,763.75 = 4,987.28/x
  3. Step 3: Cross multiply
    8,523.20x = 11,763.75 × 4,987.28
  4. Step 4: Simplify right side
    8,523.20x = 58,669,115.10
  5. Step 5: Solve for x
    x = 58,669,115.10/8,523.20
  6. Step 6: Final answer
    x = 6,883.46

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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.