Home / 18,372.02-25,359.14-10,419.50

Finding the Fourth Proportional to 18,372.02, 25,359.14 and 10,419.50

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Solution

The fourth proportional to 18,372.02, 25,359.14 and 10,419.50 is: 14,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.02 : 25,359.14 = 10,419.50 : x
  2. Step 2: Convert to fraction form
    18,372.02/25,359.14 = 10,419.50/x
  3. Step 3: Cross multiply
    18,372.02x = 25,359.14 × 10,419.50
  4. Step 4: Simplify right side
    18,372.02x = 264,229,648.68
  5. Step 5: Solve for x
    x = 264,229,648.68/18,372.02
  6. Step 6: Final answer
    x = 14,382.18

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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.