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Finding the Fourth Proportional to 6,894.80, 10,264.21 and 6,853.79

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Solution

The fourth proportional to 6,894.80, 10,264.21 and 6,853.79 is: 10,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,894.80 : 10,264.21 = 6,853.79 : x
  2. Step 2: Convert to fraction form
    6,894.80/10,264.21 = 6,853.79/x
  3. Step 3: Cross multiply
    6,894.80x = 10,264.21 × 6,853.79
  4. Step 4: Simplify right side
    6,894.80x = 70,348,739.86
  5. Step 5: Solve for x
    x = 70,348,739.86/6,894.80
  6. Step 6: Final answer
    x = 10,203.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.