Home / 10,612.21-15,910.69-4,986.71

Finding the Fourth Proportional to 10,612.21, 15,910.69 and 4,986.71

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Solution

The fourth proportional to 10,612.21, 15,910.69 and 4,986.71 is: 7,476.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.21 : 15,910.69 = 4,986.71 : x
  2. Step 2: Convert to fraction form
    10,612.21/15,910.69 = 4,986.71/x
  3. Step 3: Cross multiply
    10,612.21x = 15,910.69 × 4,986.71
  4. Step 4: Simplify right side
    10,612.21x = 79,341,996.93
  5. Step 5: Solve for x
    x = 79,341,996.93/10,612.21
  6. Step 6: Final answer
    x = 7,476.48

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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.