Home / 12,019.02-18,028.54-3,134.34

Finding the Fourth Proportional to 12,019.02, 18,028.54 and 3,134.34

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Solution

The fourth proportional to 12,019.02, 18,028.54 and 3,134.34 is: 4,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.02 : 18,028.54 = 3,134.34 : x
  2. Step 2: Convert to fraction form
    12,019.02/18,028.54 = 3,134.34/x
  3. Step 3: Cross multiply
    12,019.02x = 18,028.54 × 3,134.34
  4. Step 4: Simplify right side
    12,019.02x = 56,507,566.23
  5. Step 5: Solve for x
    x = 56,507,566.23/12,019.02
  6. Step 6: Final answer
    x = 4,701.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.