Home / 14,222.51-19,619.17-9,979.93

Finding the Fourth Proportional to 14,222.51, 19,619.17 and 9,979.93

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Solution

The fourth proportional to 14,222.51, 19,619.17 and 9,979.93 is: 13,766.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.51 : 19,619.17 = 9,979.93 : x
  2. Step 2: Convert to fraction form
    14,222.51/19,619.17 = 9,979.93/x
  3. Step 3: Cross multiply
    14,222.51x = 19,619.17 × 9,979.93
  4. Step 4: Simplify right side
    14,222.51x = 195,797,943.26
  5. Step 5: Solve for x
    x = 195,797,943.26/14,222.51
  6. Step 6: Final answer
    x = 13,766.76

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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.