Home / 18,517.94-27,779.64-5,368.60

Finding the Fourth Proportional to 18,517.94, 27,779.64 and 5,368.60

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Solution

The fourth proportional to 18,517.94, 27,779.64 and 5,368.60 is: 8,053.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.94 : 27,779.64 = 5,368.60 : x
  2. Step 2: Convert to fraction form
    18,517.94/27,779.64 = 5,368.60/x
  3. Step 3: Cross multiply
    18,517.94x = 27,779.64 × 5,368.60
  4. Step 4: Simplify right side
    18,517.94x = 149,137,748.46
  5. Step 5: Solve for x
    x = 149,137,748.46/18,517.94
  6. Step 6: Final answer
    x = 8,053.69

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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.