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Finding the Fourth Proportional to 8,335.98, 12,495.24 and 3,948.21

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Solution

The fourth proportional to 8,335.98, 12,495.24 and 3,948.21 is: 5,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.98 : 12,495.24 = 3,948.21 : x
  2. Step 2: Convert to fraction form
    8,335.98/12,495.24 = 3,948.21/x
  3. Step 3: Cross multiply
    8,335.98x = 12,495.24 × 3,948.21
  4. Step 4: Simplify right side
    8,335.98x = 49,333,831.52
  5. Step 5: Solve for x
    x = 49,333,831.52/8,335.98
  6. Step 6: Final answer
    x = 5,918.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.