Home / 14,267.51-19,689.20-7,979.88

Finding the Fourth Proportional to 14,267.51, 19,689.20 and 7,979.88

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Solution

The fourth proportional to 14,267.51, 19,689.20 and 7,979.88 is: 11,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,267.51 : 19,689.20 = 7,979.88 : x
  2. Step 2: Convert to fraction form
    14,267.51/19,689.20 = 7,979.88/x
  3. Step 3: Cross multiply
    14,267.51x = 19,689.20 × 7,979.88
  4. Step 4: Simplify right side
    14,267.51x = 157,117,413.40
  5. Step 5: Solve for x
    x = 157,117,413.40/14,267.51
  6. Step 6: Final answer
    x = 11,012.26

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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.