Home / 13,917.27-19,205.12-7,947.77

Finding the Fourth Proportional to 13,917.27, 19,205.12 and 7,947.77

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Solution

The fourth proportional to 13,917.27, 19,205.12 and 7,947.77 is: 10,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.27 : 19,205.12 = 7,947.77 : x
  2. Step 2: Convert to fraction form
    13,917.27/19,205.12 = 7,947.77/x
  3. Step 3: Cross multiply
    13,917.27x = 19,205.12 × 7,947.77
  4. Step 4: Simplify right side
    13,917.27x = 152,637,836.84
  5. Step 5: Solve for x
    x = 152,637,836.84/13,917.27
  6. Step 6: Final answer
    x = 10,967.51

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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.