Home / 12,062.96-18,176.62-9,919.70

Finding the Fourth Proportional to 12,062.96, 18,176.62 and 9,919.70

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Solution

The fourth proportional to 12,062.96, 18,176.62 and 9,919.70 is: 14,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.96 : 18,176.62 = 9,919.70 : x
  2. Step 2: Convert to fraction form
    12,062.96/18,176.62 = 9,919.70/x
  3. Step 3: Cross multiply
    12,062.96x = 18,176.62 × 9,919.70
  4. Step 4: Simplify right side
    12,062.96x = 180,306,567.82
  5. Step 5: Solve for x
    x = 180,306,567.82/12,062.96
  6. Step 6: Final answer
    x = 14,947.12

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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.