Home / 15,383.52-21,229.95-8,577.99

Finding the Fourth Proportional to 15,383.52, 21,229.95 and 8,577.99

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Solution

The fourth proportional to 15,383.52, 21,229.95 and 8,577.99 is: 11,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.52 : 21,229.95 = 8,577.99 : x
  2. Step 2: Convert to fraction form
    15,383.52/21,229.95 = 8,577.99/x
  3. Step 3: Cross multiply
    15,383.52x = 21,229.95 × 8,577.99
  4. Step 4: Simplify right side
    15,383.52x = 182,110,298.80
  5. Step 5: Solve for x
    x = 182,110,298.80/15,383.52
  6. Step 6: Final answer
    x = 11,838.01

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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.