Home / 11,818.60-17,742.30-6,557.80

Finding the Fourth Proportional to 11,818.60, 17,742.30 and 6,557.80

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Solution

The fourth proportional to 11,818.60, 17,742.30 and 6,557.80 is: 9,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.60 : 17,742.30 = 6,557.80 : x
  2. Step 2: Convert to fraction form
    11,818.60/17,742.30 = 6,557.80/x
  3. Step 3: Cross multiply
    11,818.60x = 17,742.30 × 6,557.80
  4. Step 4: Simplify right side
    11,818.60x = 116,350,454.94
  5. Step 5: Solve for x
    x = 116,350,454.94/11,818.60
  6. Step 6: Final answer
    x = 9,844.69

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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.