Home / 13,932.07-19,224.45-7,964.13

Finding the Fourth Proportional to 13,932.07, 19,224.45 and 7,964.13

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Solution

The fourth proportional to 13,932.07, 19,224.45 and 7,964.13 is: 10,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.07 : 19,224.45 = 7,964.13 : x
  2. Step 2: Convert to fraction form
    13,932.07/19,224.45 = 7,964.13/x
  3. Step 3: Cross multiply
    13,932.07x = 19,224.45 × 7,964.13
  4. Step 4: Simplify right side
    13,932.07x = 153,106,018.98
  5. Step 5: Solve for x
    x = 153,106,018.98/13,932.07
  6. Step 6: Final answer
    x = 10,989.47

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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.