Home / 18,369.81-25,351.13-11,298.57

Finding the Fourth Proportional to 18,369.81, 25,351.13 and 11,298.57

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Solution

The fourth proportional to 18,369.81, 25,351.13 and 11,298.57 is: 15,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.81 : 25,351.13 = 11,298.57 : x
  2. Step 2: Convert to fraction form
    18,369.81/25,351.13 = 11,298.57/x
  3. Step 3: Cross multiply
    18,369.81x = 25,351.13 × 11,298.57
  4. Step 4: Simplify right side
    18,369.81x = 286,431,460.39
  5. Step 5: Solve for x
    x = 286,431,460.39/18,369.81
  6. Step 6: Final answer
    x = 15,592.51

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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.