Home / 13,256.35-18,294.11-7,288.17

Finding the Fourth Proportional to 13,256.35, 18,294.11 and 7,288.17

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Solution

The fourth proportional to 13,256.35, 18,294.11 and 7,288.17 is: 10,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.35 : 18,294.11 = 7,288.17 : x
  2. Step 2: Convert to fraction form
    13,256.35/18,294.11 = 7,288.17/x
  3. Step 3: Cross multiply
    13,256.35x = 18,294.11 × 7,288.17
  4. Step 4: Simplify right side
    13,256.35x = 133,330,505.97
  5. Step 5: Solve for x
    x = 133,330,505.97/13,256.35
  6. Step 6: Final answer
    x = 10,057.86

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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.