Home / 9,328.17-13,990.95-3,781.51

Finding the Fourth Proportional to 9,328.17, 13,990.95 and 3,781.51

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Solution

The fourth proportional to 9,328.17, 13,990.95 and 3,781.51 is: 5,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.17 : 13,990.95 = 3,781.51 : x
  2. Step 2: Convert to fraction form
    9,328.17/13,990.95 = 3,781.51/x
  3. Step 3: Cross multiply
    9,328.17x = 13,990.95 × 3,781.51
  4. Step 4: Simplify right side
    9,328.17x = 52,906,917.33
  5. Step 5: Solve for x
    x = 52,906,917.33/9,328.17
  6. Step 6: Final answer
    x = 5,671.74

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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.