Home / 11,436.93-15,781.64-6,401.43

Finding the Fourth Proportional to 11,436.93, 15,781.64 and 6,401.43

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Solution

The fourth proportional to 11,436.93, 15,781.64 and 6,401.43 is: 8,833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.93 : 15,781.64 = 6,401.43 : x
  2. Step 2: Convert to fraction form
    11,436.93/15,781.64 = 6,401.43/x
  3. Step 3: Cross multiply
    11,436.93x = 15,781.64 × 6,401.43
  4. Step 4: Simplify right side
    11,436.93x = 101,025,031.74
  5. Step 5: Solve for x
    x = 101,025,031.74/11,436.93
  6. Step 6: Final answer
    x = 8,833.23

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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.