Home / 9,929.28-14,890.32-3,687.84

Finding the Fourth Proportional to 9,929.28, 14,890.32 and 3,687.84

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Solution

The fourth proportional to 9,929.28, 14,890.32 and 3,687.84 is: 5,530.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.28 : 14,890.32 = 3,687.84 : x
  2. Step 2: Convert to fraction form
    9,929.28/14,890.32 = 3,687.84/x
  3. Step 3: Cross multiply
    9,929.28x = 14,890.32 × 3,687.84
  4. Step 4: Simplify right side
    9,929.28x = 54,913,117.71
  5. Step 5: Solve for x
    x = 54,913,117.71/9,929.28
  6. Step 6: Final answer
    x = 5,530.42

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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.