Home / 18,285.12-25,233.36-9,901.44

Finding the Fourth Proportional to 18,285.12, 25,233.36 and 9,901.44

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Solution

The fourth proportional to 18,285.12, 25,233.36 and 9,901.44 is: 13,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.12 : 25,233.36 = 9,901.44 : x
  2. Step 2: Convert to fraction form
    18,285.12/25,233.36 = 9,901.44/x
  3. Step 3: Cross multiply
    18,285.12x = 25,233.36 × 9,901.44
  4. Step 4: Simplify right side
    18,285.12x = 249,846,600.04
  5. Step 5: Solve for x
    x = 249,846,600.04/18,285.12
  6. Step 6: Final answer
    x = 13,663.93

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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.