Home / 10,383.80-15,550.25-9,385.34

Finding the Fourth Proportional to 10,383.80, 15,550.25 and 9,385.34

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Solution

The fourth proportional to 10,383.80, 15,550.25 and 9,385.34 is: 14,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.80 : 15,550.25 = 9,385.34 : x
  2. Step 2: Convert to fraction form
    10,383.80/15,550.25 = 9,385.34/x
  3. Step 3: Cross multiply
    10,383.80x = 15,550.25 × 9,385.34
  4. Step 4: Simplify right side
    10,383.80x = 145,944,316.97
  5. Step 5: Solve for x
    x = 145,944,316.97/10,383.80
  6. Step 6: Final answer
    x = 14,055.00

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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.