Home / 8,115.61-11,193.77-5,277.74

Finding the Fourth Proportional to 8,115.61, 11,193.77 and 5,277.74

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Solution

The fourth proportional to 8,115.61, 11,193.77 and 5,277.74 is: 7,279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.61 : 11,193.77 = 5,277.74 : x
  2. Step 2: Convert to fraction form
    8,115.61/11,193.77 = 5,277.74/x
  3. Step 3: Cross multiply
    8,115.61x = 11,193.77 × 5,277.74
  4. Step 4: Simplify right side
    8,115.61x = 59,077,807.68
  5. Step 5: Solve for x
    x = 59,077,807.68/8,115.61
  6. Step 6: Final answer
    x = 7,279.53

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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.