Home / 7,318.19-10,099.28-4,174.31

Finding the Fourth Proportional to 7,318.19, 10,099.28 and 4,174.31

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Solution

The fourth proportional to 7,318.19, 10,099.28 and 4,174.31 is: 5,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.19 : 10,099.28 = 4,174.31 : x
  2. Step 2: Convert to fraction form
    7,318.19/10,099.28 = 4,174.31/x
  3. Step 3: Cross multiply
    7,318.19x = 10,099.28 × 4,174.31
  4. Step 4: Simplify right side
    7,318.19x = 42,157,504.63
  5. Step 5: Solve for x
    x = 42,157,504.63/7,318.19
  6. Step 6: Final answer
    x = 5,760.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.