Home / 14,268.72-19,690.66-7,894.83

Finding the Fourth Proportional to 14,268.72, 19,690.66 and 7,894.83

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Solution

The fourth proportional to 14,268.72, 19,690.66 and 7,894.83 is: 10,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.72 : 19,690.66 = 7,894.83 : x
  2. Step 2: Convert to fraction form
    14,268.72/19,690.66 = 7,894.83/x
  3. Step 3: Cross multiply
    14,268.72x = 19,690.66 × 7,894.83
  4. Step 4: Simplify right side
    14,268.72x = 155,454,497.00
  5. Step 5: Solve for x
    x = 155,454,497.00/14,268.72
  6. Step 6: Final answer
    x = 10,894.77

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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.