Home / 10,743.80-16,115.70-9,822.20

Finding the Fourth Proportional to 10,743.80, 16,115.70 and 9,822.20

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Solution

The fourth proportional to 10,743.80, 16,115.70 and 9,822.20 is: 14,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,743.80 : 16,115.70 = 9,822.20 : x
  2. Step 2: Convert to fraction form
    10,743.80/16,115.70 = 9,822.20/x
  3. Step 3: Cross multiply
    10,743.80x = 16,115.70 × 9,822.20
  4. Step 4: Simplify right side
    10,743.80x = 158,291,628.54
  5. Step 5: Solve for x
    x = 158,291,628.54/10,743.80
  6. Step 6: Final answer
    x = 14,733.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.