Home / 13,257.30-18,294.82-7,288.91

Finding the Fourth Proportional to 13,257.30, 18,294.82 and 7,288.91

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Solution

The fourth proportional to 13,257.30, 18,294.82 and 7,288.91 is: 10,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.30 : 18,294.82 = 7,288.91 : x
  2. Step 2: Convert to fraction form
    13,257.30/18,294.82 = 7,288.91/x
  3. Step 3: Cross multiply
    13,257.30x = 18,294.82 × 7,288.91
  4. Step 4: Simplify right side
    13,257.30x = 133,349,296.45
  5. Step 5: Solve for x
    x = 133,349,296.45/13,257.30
  6. Step 6: Final answer
    x = 10,058.56

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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.