Home / 6,887.34-10,286.15-5,502.78

Finding the Fourth Proportional to 6,887.34, 10,286.15 and 5,502.78

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Solution

The fourth proportional to 6,887.34, 10,286.15 and 5,502.78 is: 8,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.34 : 10,286.15 = 5,502.78 : x
  2. Step 2: Convert to fraction form
    6,887.34/10,286.15 = 5,502.78/x
  3. Step 3: Cross multiply
    6,887.34x = 10,286.15 × 5,502.78
  4. Step 4: Simplify right side
    6,887.34x = 56,602,392.98
  5. Step 5: Solve for x
    x = 56,602,392.98/6,887.34
  6. Step 6: Final answer
    x = 8,218.32

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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.