Home / 13,257.14-18,294.90-7,289.19

Finding the Fourth Proportional to 13,257.14, 18,294.90 and 7,289.19

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Solution

The fourth proportional to 13,257.14, 18,294.90 and 7,289.19 is: 10,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.14 : 18,294.90 = 7,289.19 : x
  2. Step 2: Convert to fraction form
    13,257.14/18,294.90 = 7,289.19/x
  3. Step 3: Cross multiply
    13,257.14x = 18,294.90 × 7,289.19
  4. Step 4: Simplify right side
    13,257.14x = 133,354,910.66
  5. Step 5: Solve for x
    x = 133,354,910.66/13,257.14
  6. Step 6: Final answer
    x = 10,059.10

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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.