Home / 8,816.99-13,208.16-5,111.43

Finding the Fourth Proportional to 8,816.99, 13,208.16 and 5,111.43

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Solution

The fourth proportional to 8,816.99, 13,208.16 and 5,111.43 is: 7,657.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.99 : 13,208.16 = 5,111.43 : x
  2. Step 2: Convert to fraction form
    8,816.99/13,208.16 = 5,111.43/x
  3. Step 3: Cross multiply
    8,816.99x = 13,208.16 × 5,111.43
  4. Step 4: Simplify right side
    8,816.99x = 67,512,585.27
  5. Step 5: Solve for x
    x = 67,512,585.27/8,816.99
  6. Step 6: Final answer
    x = 7,657.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.