Home / 12,175.24-16,803.12-7,143.70

Finding the Fourth Proportional to 12,175.24, 16,803.12 and 7,143.70

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Solution

The fourth proportional to 12,175.24, 16,803.12 and 7,143.70 is: 9,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.24 : 16,803.12 = 7,143.70 : x
  2. Step 2: Convert to fraction form
    12,175.24/16,803.12 = 7,143.70/x
  3. Step 3: Cross multiply
    12,175.24x = 16,803.12 × 7,143.70
  4. Step 4: Simplify right side
    12,175.24x = 120,036,448.34
  5. Step 5: Solve for x
    x = 120,036,448.34/12,175.24
  6. Step 6: Final answer
    x = 9,859.06

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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.