Home / 18,534.78-25,564.71-11,813.46

Finding the Fourth Proportional to 18,534.78, 25,564.71 and 11,813.46

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Solution

The fourth proportional to 18,534.78, 25,564.71 and 11,813.46 is: 16,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534.78 : 25,564.71 = 11,813.46 : x
  2. Step 2: Convert to fraction form
    18,534.78/25,564.71 = 11,813.46/x
  3. Step 3: Cross multiply
    18,534.78x = 25,564.71 × 11,813.46
  4. Step 4: Simplify right side
    18,534.78x = 302,007,679.00
  5. Step 5: Solve for x
    x = 302,007,679.00/18,534.78
  6. Step 6: Final answer
    x = 16,294.11

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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.