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Finding the Fourth Proportional to 18,285, 25,233.39 and 9,901.50

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Solution

The fourth proportional to 18,285, 25,233.39 and 9,901.50 is: 13,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285 : 25,233.39 = 9,901.50 : x
  2. Step 2: Convert to fraction form
    18,285/25,233.39 = 9,901.50/x
  3. Step 3: Cross multiply
    18,285x = 25,233.39 × 9,901.50
  4. Step 4: Simplify right side
    18,285x = 249,848,411.09
  5. Step 5: Solve for x
    x = 249,848,411.09/18,285
  6. Step 6: Final answer
    x = 13,664.12

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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.