Home / 8,155.78-11,254.60-4,618.91

Finding the Fourth Proportional to 8,155.78, 11,254.60 and 4,618.91

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Solution

The fourth proportional to 8,155.78, 11,254.60 and 4,618.91 is: 6,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.78 : 11,254.60 = 4,618.91 : x
  2. Step 2: Convert to fraction form
    8,155.78/11,254.60 = 4,618.91/x
  3. Step 3: Cross multiply
    8,155.78x = 11,254.60 × 4,618.91
  4. Step 4: Simplify right side
    8,155.78x = 51,983,984.49
  5. Step 5: Solve for x
    x = 51,983,984.49/8,155.78
  6. Step 6: Final answer
    x = 6,373.88

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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.