Home / 18,517.79-27,779.42-5,368.46

Finding the Fourth Proportional to 18,517.79, 27,779.42 and 5,368.46

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Solution

The fourth proportional to 18,517.79, 27,779.42 and 5,368.46 is: 8,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.79 : 27,779.42 = 5,368.46 : x
  2. Step 2: Convert to fraction form
    18,517.79/27,779.42 = 5,368.46/x
  3. Step 3: Cross multiply
    18,517.79x = 27,779.42 × 5,368.46
  4. Step 4: Simplify right side
    18,517.79x = 149,132,539.35
  5. Step 5: Solve for x
    x = 149,132,539.35/18,517.79
  6. Step 6: Final answer
    x = 8,053.48

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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.