Home / 14,319.97-19,785.31-11,318.09

Finding the Fourth Proportional to 14,319.97, 19,785.31 and 11,318.09

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Solution

The fourth proportional to 14,319.97, 19,785.31 and 11,318.09 is: 15,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.97 : 19,785.31 = 11,318.09 : x
  2. Step 2: Convert to fraction form
    14,319.97/19,785.31 = 11,318.09/x
  3. Step 3: Cross multiply
    14,319.97x = 19,785.31 × 11,318.09
  4. Step 4: Simplify right side
    14,319.97x = 223,931,792.04
  5. Step 5: Solve for x
    x = 223,931,792.04/14,319.97
  6. Step 6: Final answer
    x = 15,637.73

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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.