Home / 11,229.39-15,503.22-9,983.93

Finding the Fourth Proportional to 11,229.39, 15,503.22 and 9,983.93

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Solution

The fourth proportional to 11,229.39, 15,503.22 and 9,983.93 is: 13,783.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.39 : 15,503.22 = 9,983.93 : x
  2. Step 2: Convert to fraction form
    11,229.39/15,503.22 = 9,983.93/x
  3. Step 3: Cross multiply
    11,229.39x = 15,503.22 × 9,983.93
  4. Step 4: Simplify right side
    11,229.39x = 154,782,985.74
  5. Step 5: Solve for x
    x = 154,782,985.74/11,229.39
  6. Step 6: Final answer
    x = 13,783.74

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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.