Home / 8,127.36-12,175.29-5,345.64

Finding the Fourth Proportional to 8,127.36, 12,175.29 and 5,345.64

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Solution

The fourth proportional to 8,127.36, 12,175.29 and 5,345.64 is: 8,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.36 : 12,175.29 = 5,345.64 : x
  2. Step 2: Convert to fraction form
    8,127.36/12,175.29 = 5,345.64/x
  3. Step 3: Cross multiply
    8,127.36x = 12,175.29 × 5,345.64
  4. Step 4: Simplify right side
    8,127.36x = 65,084,717.24
  5. Step 5: Solve for x
    x = 65,084,717.24/8,127.36
  6. Step 6: Final answer
    x = 8,008.10

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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.