Home / 18,403.45-25,396.76-10,019.95

Finding the Fourth Proportional to 18,403.45, 25,396.76 and 10,019.95

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Solution

The fourth proportional to 18,403.45, 25,396.76 and 10,019.95 is: 13,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.45 : 25,396.76 = 10,019.95 : x
  2. Step 2: Convert to fraction form
    18,403.45/25,396.76 = 10,019.95/x
  3. Step 3: Cross multiply
    18,403.45x = 25,396.76 × 10,019.95
  4. Step 4: Simplify right side
    18,403.45x = 254,474,265.36
  5. Step 5: Solve for x
    x = 254,474,265.36/18,403.45
  6. Step 6: Final answer
    x = 13,827.53

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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.