Home / 8,318.17-11,478.78-4,959.26

Finding the Fourth Proportional to 8,318.17, 11,478.78 and 4,959.26

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Solution

The fourth proportional to 8,318.17, 11,478.78 and 4,959.26 is: 6,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.17 : 11,478.78 = 4,959.26 : x
  2. Step 2: Convert to fraction form
    8,318.17/11,478.78 = 4,959.26/x
  3. Step 3: Cross multiply
    8,318.17x = 11,478.78 × 4,959.26
  4. Step 4: Simplify right side
    8,318.17x = 56,926,254.50
  5. Step 5: Solve for x
    x = 56,926,254.50/8,318.17
  6. Step 6: Final answer
    x = 6,843.60

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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.