Home / 12,372.80-18,626.66-11,284.16

Finding the Fourth Proportional to 12,372.80, 18,626.66 and 11,284.16

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Solution

The fourth proportional to 12,372.80, 18,626.66 and 11,284.16 is: 16,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.80 : 18,626.66 = 11,284.16 : x
  2. Step 2: Convert to fraction form
    12,372.80/18,626.66 = 11,284.16/x
  3. Step 3: Cross multiply
    12,372.80x = 18,626.66 × 11,284.16
  4. Step 4: Simplify right side
    12,372.80x = 210,186,211.71
  5. Step 5: Solve for x
    x = 210,186,211.71/12,372.80
  6. Step 6: Final answer
    x = 16,987.76

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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.