Home / 13,933.07-19,225.83-7,965.13

Finding the Fourth Proportional to 13,933.07, 19,225.83 and 7,965.13

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Solution

The fourth proportional to 13,933.07, 19,225.83 and 7,965.13 is: 10,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.07 : 19,225.83 = 7,965.13 : x
  2. Step 2: Convert to fraction form
    13,933.07/19,225.83 = 7,965.13/x
  3. Step 3: Cross multiply
    13,933.07x = 19,225.83 × 7,965.13
  4. Step 4: Simplify right side
    13,933.07x = 153,136,235.31
  5. Step 5: Solve for x
    x = 153,136,235.31/13,933.07
  6. Step 6: Final answer
    x = 10,990.85

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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.