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Finding the Fourth Proportional to 9,339.71, 13,905.88 and 9,208.95

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Solution

The fourth proportional to 9,339.71, 13,905.88 and 9,208.95 is: 13,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.71 : 13,905.88 = 9,208.95 : x
  2. Step 2: Convert to fraction form
    9,339.71/13,905.88 = 9,208.95/x
  3. Step 3: Cross multiply
    9,339.71x = 13,905.88 × 9,208.95
  4. Step 4: Simplify right side
    9,339.71x = 128,058,553.63
  5. Step 5: Solve for x
    x = 128,058,553.63/9,339.71
  6. Step 6: Final answer
    x = 13,711.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.