Home / 18,285.45-25,233.90-9,901.95

Finding the Fourth Proportional to 18,285.45, 25,233.90 and 9,901.95

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Solution

The fourth proportional to 18,285.45, 25,233.90 and 9,901.95 is: 13,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.45 : 25,233.90 = 9,901.95 : x
  2. Step 2: Convert to fraction form
    18,285.45/25,233.90 = 9,901.95/x
  3. Step 3: Cross multiply
    18,285.45x = 25,233.90 × 9,901.95
  4. Step 4: Simplify right side
    18,285.45x = 249,864,816.11
  5. Step 5: Solve for x
    x = 249,864,816.11/18,285.45
  6. Step 6: Final answer
    x = 13,664.68

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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.