Home / 10,005.74-13,808.45-5,757.45

Finding the Fourth Proportional to 10,005.74, 13,808.45 and 5,757.45

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Solution

The fourth proportional to 10,005.74, 13,808.45 and 5,757.45 is: 7,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.74 : 13,808.45 = 5,757.45 : x
  2. Step 2: Convert to fraction form
    10,005.74/13,808.45 = 5,757.45/x
  3. Step 3: Cross multiply
    10,005.74x = 13,808.45 × 5,757.45
  4. Step 4: Simplify right side
    10,005.74x = 79,501,474.85
  5. Step 5: Solve for x
    x = 79,501,474.85/10,005.74
  6. Step 6: Final answer
    x = 7,945.58

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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.