Home / 13,932.57-19,225.14-7,964.63

Finding the Fourth Proportional to 13,932.57, 19,225.14 and 7,964.63

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Solution

The fourth proportional to 13,932.57, 19,225.14 and 7,964.63 is: 10,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.57 : 19,225.14 = 7,964.63 : x
  2. Step 2: Convert to fraction form
    13,932.57/19,225.14 = 7,964.63/x
  3. Step 3: Cross multiply
    13,932.57x = 19,225.14 × 7,964.63
  4. Step 4: Simplify right side
    13,932.57x = 153,121,126.80
  5. Step 5: Solve for x
    x = 153,121,126.80/13,932.57
  6. Step 6: Final answer
    x = 10,990.16

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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.