Home / 10,386.74-15,579.60-3,812.41

Finding the Fourth Proportional to 10,386.74, 15,579.60 and 3,812.41

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Solution

The fourth proportional to 10,386.74, 15,579.60 and 3,812.41 is: 5,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.74 : 15,579.60 = 3,812.41 : x
  2. Step 2: Convert to fraction form
    10,386.74/15,579.60 = 3,812.41/x
  3. Step 3: Cross multiply
    10,386.74x = 15,579.60 × 3,812.41
  4. Step 4: Simplify right side
    10,386.74x = 59,395,828.01
  5. Step 5: Solve for x
    x = 59,395,828.01/10,386.74
  6. Step 6: Final answer
    x = 5,718.43

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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.