Home / 18,402.75-25,396.34-10,019.79

Finding the Fourth Proportional to 18,402.75, 25,396.34 and 10,019.79

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Solution

The fourth proportional to 18,402.75, 25,396.34 and 10,019.79 is: 13,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.75 : 25,396.34 = 10,019.79 : x
  2. Step 2: Convert to fraction form
    18,402.75/25,396.34 = 10,019.79/x
  3. Step 3: Cross multiply
    18,402.75x = 25,396.34 × 10,019.79
  4. Step 4: Simplify right side
    18,402.75x = 254,465,943.47
  5. Step 5: Solve for x
    x = 254,465,943.47/18,402.75
  6. Step 6: Final answer
    x = 13,827.60

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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.