Home / 12,050.64-18,055.80-7,885.44

Finding the Fourth Proportional to 12,050.64, 18,055.80 and 7,885.44

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Solution

The fourth proportional to 12,050.64, 18,055.80 and 7,885.44 is: 11,814.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,050.64 : 18,055.80 = 7,885.44 : x
  2. Step 2: Convert to fraction form
    12,050.64/18,055.80 = 7,885.44/x
  3. Step 3: Cross multiply
    12,050.64x = 18,055.80 × 7,885.44
  4. Step 4: Simplify right side
    12,050.64x = 142,377,927.55
  5. Step 5: Solve for x
    x = 142,377,927.55/12,050.64
  6. Step 6: Final answer
    x = 11,814.97

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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.