Home / 12,863.24-19,297.28-8,712.80

Finding the Fourth Proportional to 12,863.24, 19,297.28 and 8,712.80

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Solution

The fourth proportional to 12,863.24, 19,297.28 and 8,712.80 is: 13,070.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.24 : 19,297.28 = 8,712.80 : x
  2. Step 2: Convert to fraction form
    12,863.24/19,297.28 = 8,712.80/x
  3. Step 3: Cross multiply
    12,863.24x = 19,297.28 × 8,712.80
  4. Step 4: Simplify right side
    12,863.24x = 168,133,341.18
  5. Step 5: Solve for x
    x = 168,133,341.18/12,863.24
  6. Step 6: Final answer
    x = 13,070.84

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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.