Home / 9,139.24-13,714.32-8,395.66

Finding the Fourth Proportional to 9,139.24, 13,714.32 and 8,395.66

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Solution

The fourth proportional to 9,139.24, 13,714.32 and 8,395.66 is: 12,598.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.24 : 13,714.32 = 8,395.66 : x
  2. Step 2: Convert to fraction form
    9,139.24/13,714.32 = 8,395.66/x
  3. Step 3: Cross multiply
    9,139.24x = 13,714.32 × 8,395.66
  4. Step 4: Simplify right side
    9,139.24x = 115,140,816.48
  5. Step 5: Solve for x
    x = 115,140,816.48/9,139.24
  6. Step 6: Final answer
    x = 12,598.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.