Home / 8,557.19-11,812.26-5,200.55

Finding the Fourth Proportional to 8,557.19, 11,812.26 and 5,200.55

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Solution

The fourth proportional to 8,557.19, 11,812.26 and 5,200.55 is: 7,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.19 : 11,812.26 = 5,200.55 : x
  2. Step 2: Convert to fraction form
    8,557.19/11,812.26 = 5,200.55/x
  3. Step 3: Cross multiply
    8,557.19x = 11,812.26 × 5,200.55
  4. Step 4: Simplify right side
    8,557.19x = 61,430,189.68
  5. Step 5: Solve for x
    x = 61,430,189.68/8,557.19
  6. Step 6: Final answer
    x = 7,178.78

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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.