Home / 10,376.40-15,559.92-2,979.18

Finding the Fourth Proportional to 10,376.40, 15,559.92 and 2,979.18

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Solution

The fourth proportional to 10,376.40, 15,559.92 and 2,979.18 is: 4,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,376.40 : 15,559.92 = 2,979.18 : x
  2. Step 2: Convert to fraction form
    10,376.40/15,559.92 = 2,979.18/x
  3. Step 3: Cross multiply
    10,376.40x = 15,559.92 × 2,979.18
  4. Step 4: Simplify right side
    10,376.40x = 46,355,802.47
  5. Step 5: Solve for x
    x = 46,355,802.47/10,376.40
  6. Step 6: Final answer
    x = 4,467.43

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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.