Home / 13,257.13-18,294.89-7,289.18

Finding the Fourth Proportional to 13,257.13, 18,294.89 and 7,289.18

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Solution

The fourth proportional to 13,257.13, 18,294.89 and 7,289.18 is: 10,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.13 : 18,294.89 = 7,289.18 : x
  2. Step 2: Convert to fraction form
    13,257.13/18,294.89 = 7,289.18/x
  3. Step 3: Cross multiply
    13,257.13x = 18,294.89 × 7,289.18
  4. Step 4: Simplify right side
    13,257.13x = 133,354,707.48
  5. Step 5: Solve for x
    x = 133,354,707.48/13,257.13
  6. Step 6: Final answer
    x = 10,059.09

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Similar ratio
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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.