Home / 6,138.12-8,473.02-3,901.23

Finding the Fourth Proportional to 6,138.12, 8,473.02 and 3,901.23

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Solution

The fourth proportional to 6,138.12, 8,473.02 and 3,901.23 is: 5,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.12 : 8,473.02 = 3,901.23 : x
  2. Step 2: Convert to fraction form
    6,138.12/8,473.02 = 3,901.23/x
  3. Step 3: Cross multiply
    6,138.12x = 8,473.02 × 3,901.23
  4. Step 4: Simplify right side
    6,138.12x = 33,055,199.81
  5. Step 5: Solve for x
    x = 33,055,199.81/6,138.12
  6. Step 6: Final answer
    x = 5,385.23

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Half scale
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Double scale
Find fourth proportional to 6,139.12, 8,474.40 and 3,902.23
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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.