Home / 18,607.72-25,667.94-11,151.40

Finding the Fourth Proportional to 18,607.72, 25,667.94 and 11,151.40

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Solution

The fourth proportional to 18,607.72, 25,667.94 and 11,151.40 is: 15,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.72 : 25,667.94 = 11,151.40 : x
  2. Step 2: Convert to fraction form
    18,607.72/25,667.94 = 11,151.40/x
  3. Step 3: Cross multiply
    18,607.72x = 25,667.94 × 11,151.40
  4. Step 4: Simplify right side
    18,607.72x = 286,233,466.12
  5. Step 5: Solve for x
    x = 286,233,466.12/18,607.72
  6. Step 6: Final answer
    x = 15,382.51

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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.