Home / 10,664.94-15,990.56-4,429.26

Finding the Fourth Proportional to 10,664.94, 15,990.56 and 4,429.26

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Solution

The fourth proportional to 10,664.94, 15,990.56 and 4,429.26 is: 6,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.94 : 15,990.56 = 4,429.26 : x
  2. Step 2: Convert to fraction form
    10,664.94/15,990.56 = 4,429.26/x
  3. Step 3: Cross multiply
    10,664.94x = 15,990.56 × 4,429.26
  4. Step 4: Simplify right side
    10,664.94x = 70,826,347.79
  5. Step 5: Solve for x
    x = 70,826,347.79/10,664.94
  6. Step 6: Final answer
    x = 6,641.05

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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.