Home / 10,248.21-15,379.61-7,910.55

Finding the Fourth Proportional to 10,248.21, 15,379.61 and 7,910.55

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Solution

The fourth proportional to 10,248.21, 15,379.61 and 7,910.55 is: 11,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.21 : 15,379.61 = 7,910.55 : x
  2. Step 2: Convert to fraction form
    10,248.21/15,379.61 = 7,910.55/x
  3. Step 3: Cross multiply
    10,248.21x = 15,379.61 × 7,910.55
  4. Step 4: Simplify right side
    10,248.21x = 121,661,134.33
  5. Step 5: Solve for x
    x = 121,661,134.33/10,248.21
  6. Step 6: Final answer
    x = 11,871.45

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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.