Home / 14,226.51-19,631.79-7,939.29

Finding the Fourth Proportional to 14,226.51, 19,631.79 and 7,939.29

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Solution

The fourth proportional to 14,226.51, 19,631.79 and 7,939.29 is: 10,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,226.51 : 19,631.79 = 7,939.29 : x
  2. Step 2: Convert to fraction form
    14,226.51/19,631.79 = 7,939.29/x
  3. Step 3: Cross multiply
    14,226.51x = 19,631.79 × 7,939.29
  4. Step 4: Simplify right side
    14,226.51x = 155,862,474.03
  5. Step 5: Solve for x
    x = 155,862,474.03/14,226.51
  6. Step 6: Final answer
    x = 10,955.78

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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.