Home / 10,383.80-15,562.73-5,191.16

Finding the Fourth Proportional to 10,383.80, 15,562.73 and 5,191.16

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Solution

The fourth proportional to 10,383.80, 15,562.73 and 5,191.16 is: 7,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.80 : 15,562.73 = 5,191.16 : x
  2. Step 2: Convert to fraction form
    10,383.80/15,562.73 = 5,191.16/x
  3. Step 3: Cross multiply
    10,383.80x = 15,562.73 × 5,191.16
  4. Step 4: Simplify right side
    10,383.80x = 80,788,556.63
  5. Step 5: Solve for x
    x = 80,788,556.63/10,383.80
  6. Step 6: Final answer
    x = 7,780.25

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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.