Home / 10,513.80-15,766.11-3,015.70

Finding the Fourth Proportional to 10,513.80, 15,766.11 and 3,015.70

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Solution

The fourth proportional to 10,513.80, 15,766.11 and 3,015.70 is: 4,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.80 : 15,766.11 = 3,015.70 : x
  2. Step 2: Convert to fraction form
    10,513.80/15,766.11 = 3,015.70/x
  3. Step 3: Cross multiply
    10,513.80x = 15,766.11 × 3,015.70
  4. Step 4: Simplify right side
    10,513.80x = 47,545,779.10
  5. Step 5: Solve for x
    x = 47,545,779.10/10,513.80
  6. Step 6: Final answer
    x = 4,522.23

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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.