Home / 12,924.70-19,356.27-8,979.90

Finding the Fourth Proportional to 12,924.70, 19,356.27 and 8,979.90

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Solution

The fourth proportional to 12,924.70, 19,356.27 and 8,979.90 is: 13,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.70 : 19,356.27 = 8,979.90 : x
  2. Step 2: Convert to fraction form
    12,924.70/19,356.27 = 8,979.90/x
  3. Step 3: Cross multiply
    12,924.70x = 19,356.27 × 8,979.90
  4. Step 4: Simplify right side
    12,924.70x = 173,817,262.71
  5. Step 5: Solve for x
    x = 173,817,262.71/12,924.70
  6. Step 6: Final answer
    x = 13,448.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.