Home / 7,991.90-11,024.30-5,002.55

Finding the Fourth Proportional to 7,991.90, 11,024.30 and 5,002.55

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Solution

The fourth proportional to 7,991.90, 11,024.30 and 5,002.55 is: 6,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.90 : 11,024.30 = 5,002.55 : x
  2. Step 2: Convert to fraction form
    7,991.90/11,024.30 = 5,002.55/x
  3. Step 3: Cross multiply
    7,991.90x = 11,024.30 × 5,002.55
  4. Step 4: Simplify right side
    7,991.90x = 55,149,569.35
  5. Step 5: Solve for x
    x = 55,149,569.35/7,991.90
  6. Step 6: Final answer
    x = 6,900.68

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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.