Home / 6,115.68-8,461.86-5,331.36

Finding the Fourth Proportional to 6,115.68, 8,461.86 and 5,331.36

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Solution

The fourth proportional to 6,115.68, 8,461.86 and 5,331.36 is: 7,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.68 : 8,461.86 = 5,331.36 : x
  2. Step 2: Convert to fraction form
    6,115.68/8,461.86 = 5,331.36/x
  3. Step 3: Cross multiply
    6,115.68x = 8,461.86 × 5,331.36
  4. Step 4: Simplify right side
    6,115.68x = 45,113,221.93
  5. Step 5: Solve for x
    x = 45,113,221.93/6,115.68
  6. Step 6: Final answer
    x = 7,376.65

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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.