Home / 13,947.04-19,238.88-8,354.80

Finding the Fourth Proportional to 13,947.04, 19,238.88 and 8,354.80

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Solution

The fourth proportional to 13,947.04, 19,238.88 and 8,354.80 is: 11,524.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.04 : 19,238.88 = 8,354.80 : x
  2. Step 2: Convert to fraction form
    13,947.04/19,238.88 = 8,354.80/x
  3. Step 3: Cross multiply
    13,947.04x = 19,238.88 × 8,354.80
  4. Step 4: Simplify right side
    13,947.04x = 160,736,994.62
  5. Step 5: Solve for x
    x = 160,736,994.62/13,947.04
  6. Step 6: Final answer
    x = 11,524.81

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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.