Home / 18,285.15-25,233.56-9,901.65

Finding the Fourth Proportional to 18,285.15, 25,233.56 and 9,901.65

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Solution

The fourth proportional to 18,285.15, 25,233.56 and 9,901.65 is: 13,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.15 : 25,233.56 = 9,901.65 : x
  2. Step 2: Convert to fraction form
    18,285.15/25,233.56 = 9,901.65/x
  3. Step 3: Cross multiply
    18,285.15x = 25,233.56 × 9,901.65
  4. Step 4: Simplify right side
    18,285.15x = 249,853,879.37
  5. Step 5: Solve for x
    x = 249,853,879.37/18,285.15
  6. Step 6: Final answer
    x = 13,664.31

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Double scale
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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.