Home / 12,175.96-16,802.76-6,870.46

Finding the Fourth Proportional to 12,175.96, 16,802.76 and 6,870.46

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Solution

The fourth proportional to 12,175.96, 16,802.76 and 6,870.46 is: 9,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.96 : 16,802.76 = 6,870.46 : x
  2. Step 2: Convert to fraction form
    12,175.96/16,802.76 = 6,870.46/x
  3. Step 3: Cross multiply
    12,175.96x = 16,802.76 × 6,870.46
  4. Step 4: Simplify right side
    12,175.96x = 115,442,690.47
  5. Step 5: Solve for x
    x = 115,442,690.47/12,175.96
  6. Step 6: Final answer
    x = 9,481.20

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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.