Home / 9,401.49-12,976.34-6,418.53

Finding the Fourth Proportional to 9,401.49, 12,976.34 and 6,418.53

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Solution

The fourth proportional to 9,401.49, 12,976.34 and 6,418.53 is: 8,859.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,401.49 : 12,976.34 = 6,418.53 : x
  2. Step 2: Convert to fraction form
    9,401.49/12,976.34 = 6,418.53/x
  3. Step 3: Cross multiply
    9,401.49x = 12,976.34 × 6,418.53
  4. Step 4: Simplify right side
    9,401.49x = 83,288,995.49
  5. Step 5: Solve for x
    x = 83,288,995.49/9,401.49
  6. Step 6: Final answer
    x = 8,859.13

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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.