Home / 13,257.17-18,294.42-7,288.79

Finding the Fourth Proportional to 13,257.17, 18,294.42 and 7,288.79

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Solution

The fourth proportional to 13,257.17, 18,294.42 and 7,288.79 is: 10,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.17 : 18,294.42 = 7,288.79 : x
  2. Step 2: Convert to fraction form
    13,257.17/18,294.42 = 7,288.79/x
  3. Step 3: Cross multiply
    13,257.17x = 18,294.42 × 7,288.79
  4. Step 4: Simplify right side
    13,257.17x = 133,344,090.66
  5. Step 5: Solve for x
    x = 133,344,090.66/13,257.17
  6. Step 6: Final answer
    x = 10,058.26

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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.