Home / 8,129.57-11,219.63-5,862.77

Finding the Fourth Proportional to 8,129.57, 11,219.63 and 5,862.77

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Solution

The fourth proportional to 8,129.57, 11,219.63 and 5,862.77 is: 8,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.57 : 11,219.63 = 5,862.77 : x
  2. Step 2: Convert to fraction form
    8,129.57/11,219.63 = 5,862.77/x
  3. Step 3: Cross multiply
    8,129.57x = 11,219.63 × 5,862.77
  4. Step 4: Simplify right side
    8,129.57x = 65,778,110.18
  5. Step 5: Solve for x
    x = 65,778,110.18/8,129.57
  6. Step 6: Final answer
    x = 8,091.22

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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.