Home / 10,102.47-15,160.18-4,905.51

Finding the Fourth Proportional to 10,102.47, 15,160.18 and 4,905.51

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Solution

The fourth proportional to 10,102.47, 15,160.18 and 4,905.51 is: 7,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.47 : 15,160.18 = 4,905.51 : x
  2. Step 2: Convert to fraction form
    10,102.47/15,160.18 = 4,905.51/x
  3. Step 3: Cross multiply
    10,102.47x = 15,160.18 × 4,905.51
  4. Step 4: Simplify right side
    10,102.47x = 74,368,414.59
  5. Step 5: Solve for x
    x = 74,368,414.59/10,102.47
  6. Step 6: Final answer
    x = 7,361.41

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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.