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Finding the Fourth Proportional to 12,051.70, 18,077.55 and 6,867.70

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Solution

The fourth proportional to 12,051.70, 18,077.55 and 6,867.70 is: 10,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.70 : 18,077.55 = 6,867.70 : x
  2. Step 2: Convert to fraction form
    12,051.70/18,077.55 = 6,867.70/x
  3. Step 3: Cross multiply
    12,051.70x = 18,077.55 × 6,867.70
  4. Step 4: Simplify right side
    12,051.70x = 124,151,190.14
  5. Step 5: Solve for x
    x = 124,151,190.14/12,051.70
  6. Step 6: Final answer
    x = 10,301.55

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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.