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Finding the Fourth Proportional to 8,935.84, 12,324.18 and 7,440.04

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Solution

The fourth proportional to 8,935.84, 12,324.18 and 7,440.04 is: 10,261.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.84 : 12,324.18 = 7,440.04 : x
  2. Step 2: Convert to fraction form
    8,935.84/12,324.18 = 7,440.04/x
  3. Step 3: Cross multiply
    8,935.84x = 12,324.18 × 7,440.04
  4. Step 4: Simplify right side
    8,935.84x = 91,692,392.17
  5. Step 5: Solve for x
    x = 91,692,392.17/8,935.84
  6. Step 6: Final answer
    x = 10,261.19

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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.