Home / 10,354.26-14,289.05-5,638.54

Finding the Fourth Proportional to 10,354.26, 14,289.05 and 5,638.54

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Solution

The fourth proportional to 10,354.26, 14,289.05 and 5,638.54 is: 7,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.26 : 14,289.05 = 5,638.54 : x
  2. Step 2: Convert to fraction form
    10,354.26/14,289.05 = 5,638.54/x
  3. Step 3: Cross multiply
    10,354.26x = 14,289.05 × 5,638.54
  4. Step 4: Simplify right side
    10,354.26x = 80,569,379.99
  5. Step 5: Solve for x
    x = 80,569,379.99/10,354.26
  6. Step 6: Final answer
    x = 7,781.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.