Home / 10,603.85-15,911.89-5,676.23

Finding the Fourth Proportional to 10,603.85, 15,911.89 and 5,676.23

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Solution

The fourth proportional to 10,603.85, 15,911.89 and 5,676.23 is: 8,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603.85 : 15,911.89 = 5,676.23 : x
  2. Step 2: Convert to fraction form
    10,603.85/15,911.89 = 5,676.23/x
  3. Step 3: Cross multiply
    10,603.85x = 15,911.89 × 5,676.23
  4. Step 4: Simplify right side
    10,603.85x = 90,319,572.96
  5. Step 5: Solve for x
    x = 90,319,572.96/10,603.85
  6. Step 6: Final answer
    x = 8,517.62

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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.