Home / 8,543.21-11,782.26-5,557.95

Finding the Fourth Proportional to 8,543.21, 11,782.26 and 5,557.95

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Solution

The fourth proportional to 8,543.21, 11,782.26 and 5,557.95 is: 7,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.21 : 11,782.26 = 5,557.95 : x
  2. Step 2: Convert to fraction form
    8,543.21/11,782.26 = 5,557.95/x
  3. Step 3: Cross multiply
    8,543.21x = 11,782.26 × 5,557.95
  4. Step 4: Simplify right side
    8,543.21x = 65,485,211.97
  5. Step 5: Solve for x
    x = 65,485,211.97/8,543.21
  6. Step 6: Final answer
    x = 7,665.18

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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.