Home / 10,628.84-15,943.13-4,781.32

Finding the Fourth Proportional to 10,628.84, 15,943.13 and 4,781.32

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Solution

The fourth proportional to 10,628.84, 15,943.13 and 4,781.32 is: 7,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.84 : 15,943.13 = 4,781.32 : x
  2. Step 2: Convert to fraction form
    10,628.84/15,943.13 = 4,781.32/x
  3. Step 3: Cross multiply
    10,628.84x = 15,943.13 × 4,781.32
  4. Step 4: Simplify right side
    10,628.84x = 76,229,102.71
  5. Step 5: Solve for x
    x = 76,229,102.71/10,628.84
  6. Step 6: Final answer
    x = 7,171.91

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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.