Home / 13,917.61-19,207.02-7,949.94

Finding the Fourth Proportional to 13,917.61, 19,207.02 and 7,949.94

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Solution

The fourth proportional to 13,917.61, 19,207.02 and 7,949.94 is: 10,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.61 : 19,207.02 = 7,949.94 : x
  2. Step 2: Convert to fraction form
    13,917.61/19,207.02 = 7,949.94/x
  3. Step 3: Cross multiply
    13,917.61x = 19,207.02 × 7,949.94
  4. Step 4: Simplify right side
    13,917.61x = 152,694,656.58
  5. Step 5: Solve for x
    x = 152,694,656.58/13,917.61
  6. Step 6: Final answer
    x = 10,971.33

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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.