Home / 8,424.12-12,622.20-5,127.24

Finding the Fourth Proportional to 8,424.12, 12,622.20 and 5,127.24

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Solution

The fourth proportional to 8,424.12, 12,622.20 and 5,127.24 is: 7,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.12 : 12,622.20 = 5,127.24 : x
  2. Step 2: Convert to fraction form
    8,424.12/12,622.20 = 5,127.24/x
  3. Step 3: Cross multiply
    8,424.12x = 12,622.20 × 5,127.24
  4. Step 4: Simplify right side
    8,424.12x = 64,717,048.73
  5. Step 5: Solve for x
    x = 64,717,048.73/8,424.12
  6. Step 6: Final answer
    x = 7,682.35

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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.