Home / 8,254.84-11,391.72-4,478.02

Finding the Fourth Proportional to 8,254.84, 11,391.72 and 4,478.02

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Solution

The fourth proportional to 8,254.84, 11,391.72 and 4,478.02 is: 6,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254.84 : 11,391.72 = 4,478.02 : x
  2. Step 2: Convert to fraction form
    8,254.84/11,391.72 = 4,478.02/x
  3. Step 3: Cross multiply
    8,254.84x = 11,391.72 × 4,478.02
  4. Step 4: Simplify right side
    8,254.84x = 51,012,349.99
  5. Step 5: Solve for x
    x = 51,012,349.99/8,254.84
  6. Step 6: Final answer
    x = 6,179.69

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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.