Home / 18,402.45-25,395.38-10,018.95

Finding the Fourth Proportional to 18,402.45, 25,395.38 and 10,018.95

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Solution

The fourth proportional to 18,402.45, 25,395.38 and 10,018.95 is: 13,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.45 : 25,395.38 = 10,018.95 : x
  2. Step 2: Convert to fraction form
    18,402.45/25,395.38 = 10,018.95/x
  3. Step 3: Cross multiply
    18,402.45x = 25,395.38 × 10,018.95
  4. Step 4: Simplify right side
    18,402.45x = 254,435,086.28
  5. Step 5: Solve for x
    x = 254,435,086.28/18,402.45
  6. Step 6: Final answer
    x = 13,826.15

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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.