Home / 18,276.56-27,412.80-5,129.44

Finding the Fourth Proportional to 18,276.56, 27,412.80 and 5,129.44

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Solution

The fourth proportional to 18,276.56, 27,412.80 and 5,129.44 is: 7,693.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.56 : 27,412.80 = 5,129.44 : x
  2. Step 2: Convert to fraction form
    18,276.56/27,412.80 = 5,129.44/x
  3. Step 3: Cross multiply
    18,276.56x = 27,412.80 × 5,129.44
  4. Step 4: Simplify right side
    18,276.56x = 140,612,312.83
  5. Step 5: Solve for x
    x = 140,612,312.83/18,276.56
  6. Step 6: Final answer
    x = 7,693.59

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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.