Home / 7,824.48-11,726.16-3,931.68

Finding the Fourth Proportional to 7,824.48, 11,726.16 and 3,931.68

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Solution

The fourth proportional to 7,824.48, 11,726.16 and 3,931.68 is: 5,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.48 : 11,726.16 = 3,931.68 : x
  2. Step 2: Convert to fraction form
    7,824.48/11,726.16 = 3,931.68/x
  3. Step 3: Cross multiply
    7,824.48x = 11,726.16 × 3,931.68
  4. Step 4: Simplify right side
    7,824.48x = 46,103,508.75
  5. Step 5: Solve for x
    x = 46,103,508.75/7,824.48
  6. Step 6: Final answer
    x = 5,892.21

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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.