Home / 11,208.90-15,468.21-6,172.86

Finding the Fourth Proportional to 11,208.90, 15,468.21 and 6,172.86

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Solution

The fourth proportional to 11,208.90, 15,468.21 and 6,172.86 is: 8,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.90 : 15,468.21 = 6,172.86 : x
  2. Step 2: Convert to fraction form
    11,208.90/15,468.21 = 6,172.86/x
  3. Step 3: Cross multiply
    11,208.90x = 15,468.21 × 6,172.86
  4. Step 4: Simplify right side
    11,208.90x = 95,483,094.78
  5. Step 5: Solve for x
    x = 95,483,094.78/11,208.90
  6. Step 6: Final answer
    x = 8,518.51

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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.