Home / 10,091.81-15,140.15-3,166.31

Finding the Fourth Proportional to 10,091.81, 15,140.15 and 3,166.31

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Solution

The fourth proportional to 10,091.81, 15,140.15 and 3,166.31 is: 4,750.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.81 : 15,140.15 = 3,166.31 : x
  2. Step 2: Convert to fraction form
    10,091.81/15,140.15 = 3,166.31/x
  3. Step 3: Cross multiply
    10,091.81x = 15,140.15 × 3,166.31
  4. Step 4: Simplify right side
    10,091.81x = 47,938,442.24
  5. Step 5: Solve for x
    x = 47,938,442.24/10,091.81
  6. Step 6: Final answer
    x = 4,750.23

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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.