Home / 7,421.98-11,140.26-5,650.51

Finding the Fourth Proportional to 7,421.98, 11,140.26 and 5,650.51

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Solution

The fourth proportional to 7,421.98, 11,140.26 and 5,650.51 is: 8,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.98 : 11,140.26 = 5,650.51 : x
  2. Step 2: Convert to fraction form
    7,421.98/11,140.26 = 5,650.51/x
  3. Step 3: Cross multiply
    7,421.98x = 11,140.26 × 5,650.51
  4. Step 4: Simplify right side
    7,421.98x = 62,948,150.53
  5. Step 5: Solve for x
    x = 62,948,150.53/7,421.98
  6. Step 6: Final answer
    x = 8,481.32

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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.