Home / 18,285.10-25,233.42-9,901.60

Finding the Fourth Proportional to 18,285.10, 25,233.42 and 9,901.60

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Solution

The fourth proportional to 18,285.10, 25,233.42 and 9,901.60 is: 13,664.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.10 : 25,233.42 = 9,901.60 : x
  2. Step 2: Convert to fraction form
    18,285.10/25,233.42 = 9,901.60/x
  3. Step 3: Cross multiply
    18,285.10x = 25,233.42 × 9,901.60
  4. Step 4: Simplify right side
    18,285.10x = 249,851,231.47
  5. Step 5: Solve for x
    x = 249,851,231.47/18,285.10
  6. Step 6: Final answer
    x = 13,664.20

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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.