Home / 12,047.13-18,066.26-4,147.40

Finding the Fourth Proportional to 12,047.13, 18,066.26 and 4,147.40

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Solution

The fourth proportional to 12,047.13, 18,066.26 and 4,147.40 is: 6,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.13 : 18,066.26 = 4,147.40 : x
  2. Step 2: Convert to fraction form
    12,047.13/18,066.26 = 4,147.40/x
  3. Step 3: Cross multiply
    12,047.13x = 18,066.26 × 4,147.40
  4. Step 4: Simplify right side
    12,047.13x = 74,927,895.66
  5. Step 5: Solve for x
    x = 74,927,895.66/12,047.13
  6. Step 6: Final answer
    x = 6,219.56

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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.