Home / 8,490.11-11,717.76-4,714.49

Finding the Fourth Proportional to 8,490.11, 11,717.76 and 4,714.49

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Solution

The fourth proportional to 8,490.11, 11,717.76 and 4,714.49 is: 6,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.11 : 11,717.76 = 4,714.49 : x
  2. Step 2: Convert to fraction form
    8,490.11/11,717.76 = 4,714.49/x
  3. Step 3: Cross multiply
    8,490.11x = 11,717.76 × 4,714.49
  4. Step 4: Simplify right side
    8,490.11x = 55,243,203.75
  5. Step 5: Solve for x
    x = 55,243,203.75/8,490.11
  6. Step 6: Final answer
    x = 6,506.78

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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.