Home / 10,218.38-14,101.05-5,742.02

Finding the Fourth Proportional to 10,218.38, 14,101.05 and 5,742.02

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Solution

The fourth proportional to 10,218.38, 14,101.05 and 5,742.02 is: 7,923.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.38 : 14,101.05 = 5,742.02 : x
  2. Step 2: Convert to fraction form
    10,218.38/14,101.05 = 5,742.02/x
  3. Step 3: Cross multiply
    10,218.38x = 14,101.05 × 5,742.02
  4. Step 4: Simplify right side
    10,218.38x = 80,968,511.12
  5. Step 5: Solve for x
    x = 80,968,511.12/10,218.38
  6. Step 6: Final answer
    x = 7,923.81

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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.