Home / 8,490.69-11,717.24-4,714.20

Finding the Fourth Proportional to 8,490.69, 11,717.24 and 4,714.20

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Solution

The fourth proportional to 8,490.69, 11,717.24 and 4,714.20 is: 6,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.69 : 11,717.24 = 4,714.20 : x
  2. Step 2: Convert to fraction form
    8,490.69/11,717.24 = 4,714.20/x
  3. Step 3: Cross multiply
    8,490.69x = 11,717.24 × 4,714.20
  4. Step 4: Simplify right side
    8,490.69x = 55,237,389.24
  5. Step 5: Solve for x
    x = 55,237,389.24/8,490.69
  6. Step 6: Final answer
    x = 6,505.64

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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.