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Finding the Fourth Proportional to 8,938.66, 12,335.16 and 4,959.68

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Solution

The fourth proportional to 8,938.66, 12,335.16 and 4,959.68 is: 6,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.66 : 12,335.16 = 4,959.68 : x
  2. Step 2: Convert to fraction form
    8,938.66/12,335.16 = 4,959.68/x
  3. Step 3: Cross multiply
    8,938.66x = 12,335.16 × 4,959.68
  4. Step 4: Simplify right side
    8,938.66x = 61,178,446.35
  5. Step 5: Solve for x
    x = 61,178,446.35/8,938.66
  6. Step 6: Final answer
    x = 6,844.25

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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.