Home / 8,500.59-11,714.40-5,664.78

Finding the Fourth Proportional to 8,500.59, 11,714.40 and 5,664.78

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Solution

The fourth proportional to 8,500.59, 11,714.40 and 5,664.78 is: 7,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.59 : 11,714.40 = 5,664.78 : x
  2. Step 2: Convert to fraction form
    8,500.59/11,714.40 = 5,664.78/x
  3. Step 3: Cross multiply
    8,500.59x = 11,714.40 × 5,664.78
  4. Step 4: Simplify right side
    8,500.59x = 66,359,498.83
  5. Step 5: Solve for x
    x = 66,359,498.83/8,500.59
  6. Step 6: Final answer
    x = 7,806.46

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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.