Home / 15,291.18-21,089.97-11,058.12

Finding the Fourth Proportional to 15,291.18, 21,089.97 and 11,058.12

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Solution

The fourth proportional to 15,291.18, 21,089.97 and 11,058.12 is: 15,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,291.18 : 21,089.97 = 11,058.12 : x
  2. Step 2: Convert to fraction form
    15,291.18/21,089.97 = 11,058.12/x
  3. Step 3: Cross multiply
    15,291.18x = 21,089.97 × 11,058.12
  4. Step 4: Simplify right side
    15,291.18x = 233,215,419.06
  5. Step 5: Solve for x
    x = 233,215,419.06/15,291.18
  6. Step 6: Final answer
    x = 15,251.63

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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.