Home / 15,983.88-22,058.19-8,911.68

Finding the Fourth Proportional to 15,983.88, 22,058.19 and 8,911.68

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Solution

The fourth proportional to 15,983.88, 22,058.19 and 8,911.68 is: 12,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.88 : 22,058.19 = 8,911.68 : x
  2. Step 2: Convert to fraction form
    15,983.88/22,058.19 = 8,911.68/x
  3. Step 3: Cross multiply
    15,983.88x = 22,058.19 × 8,911.68
  4. Step 4: Simplify right side
    15,983.88x = 196,575,530.66
  5. Step 5: Solve for x
    x = 196,575,530.66/15,983.88
  6. Step 6: Final answer
    x = 12,298.36

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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.