Home / 13,904.32-19,189.80-7,934.62

Finding the Fourth Proportional to 13,904.32, 19,189.80 and 7,934.62

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Solution

The fourth proportional to 13,904.32, 19,189.80 and 7,934.62 is: 10,950.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.32 : 19,189.80 = 7,934.62 : x
  2. Step 2: Convert to fraction form
    13,904.32/19,189.80 = 7,934.62/x
  3. Step 3: Cross multiply
    13,904.32x = 19,189.80 × 7,934.62
  4. Step 4: Simplify right side
    13,904.32x = 152,263,770.88
  5. Step 5: Solve for x
    x = 152,263,770.88/13,904.32
  6. Step 6: Final answer
    x = 10,950.82

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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.