Home / 12,061.96-18,175.10-9,918.70

Finding the Fourth Proportional to 12,061.96, 18,175.10 and 9,918.70

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Solution

The fourth proportional to 12,061.96, 18,175.10 and 9,918.70 is: 14,945.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,061.96 : 18,175.10 = 9,918.70 : x
  2. Step 2: Convert to fraction form
    12,061.96/18,175.10 = 9,918.70/x
  3. Step 3: Cross multiply
    12,061.96x = 18,175.10 × 9,918.70
  4. Step 4: Simplify right side
    12,061.96x = 180,273,364.37
  5. Step 5: Solve for x
    x = 180,273,364.37/12,061.96
  6. Step 6: Final answer
    x = 14,945.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.