Home / 8,938.74-12,336-5,162.60

Finding the Fourth Proportional to 8,938.74, 12,336 and 5,162.60

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Solution

The fourth proportional to 8,938.74, 12,336 and 5,162.60 is: 7,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.74 : 12,336 = 5,162.60 : x
  2. Step 2: Convert to fraction form
    8,938.74/12,336 = 5,162.60/x
  3. Step 3: Cross multiply
    8,938.74x = 12,336 × 5,162.60
  4. Step 4: Simplify right side
    8,938.74x = 63,685,833.60
  5. Step 5: Solve for x
    x = 63,685,833.60/8,938.74
  6. Step 6: Final answer
    x = 7,124.70

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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.