Home / 12,175.12-16,800.24-6,869.62

Finding the Fourth Proportional to 12,175.12, 16,800.24 and 6,869.62

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Solution

The fourth proportional to 12,175.12, 16,800.24 and 6,869.62 is: 9,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.12 : 16,800.24 = 6,869.62 : x
  2. Step 2: Convert to fraction form
    12,175.12/16,800.24 = 6,869.62/x
  3. Step 3: Cross multiply
    12,175.12x = 16,800.24 × 6,869.62
  4. Step 4: Simplify right side
    12,175.12x = 115,411,264.71
  5. Step 5: Solve for x
    x = 115,411,264.71/12,175.12
  6. Step 6: Final answer
    x = 9,479.27

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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.