Home / 10,101.81-15,156.33-5,173.77

Finding the Fourth Proportional to 10,101.81, 15,156.33 and 5,173.77

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Solution

The fourth proportional to 10,101.81, 15,156.33 and 5,173.77 is: 7,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.81 : 15,156.33 = 5,173.77 : x
  2. Step 2: Convert to fraction form
    10,101.81/15,156.33 = 5,173.77/x
  3. Step 3: Cross multiply
    10,101.81x = 15,156.33 × 5,173.77
  4. Step 4: Simplify right side
    10,101.81x = 78,415,365.46
  5. Step 5: Solve for x
    x = 78,415,365.46/10,101.81
  6. Step 6: Final answer
    x = 7,762.51

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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.