Home / 10,149.86-15,218.93-4,221.77

Finding the Fourth Proportional to 10,149.86, 15,218.93 and 4,221.77

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Solution

The fourth proportional to 10,149.86, 15,218.93 and 4,221.77 is: 6,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.86 : 15,218.93 = 4,221.77 : x
  2. Step 2: Convert to fraction form
    10,149.86/15,218.93 = 4,221.77/x
  3. Step 3: Cross multiply
    10,149.86x = 15,218.93 × 4,221.77
  4. Step 4: Simplify right side
    10,149.86x = 64,250,756.57
  5. Step 5: Solve for x
    x = 64,250,756.57/10,149.86
  6. Step 6: Final answer
    x = 6,330.21

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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.