Home / 14,961.22-20,646.91-8,247.28

Finding the Fourth Proportional to 14,961.22, 20,646.91 and 8,247.28

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Solution

The fourth proportional to 14,961.22, 20,646.91 and 8,247.28 is: 11,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.22 : 20,646.91 = 8,247.28 : x
  2. Step 2: Convert to fraction form
    14,961.22/20,646.91 = 8,247.28/x
  3. Step 3: Cross multiply
    14,961.22x = 20,646.91 × 8,247.28
  4. Step 4: Simplify right side
    14,961.22x = 170,280,744.67
  5. Step 5: Solve for x
    x = 170,280,744.67/14,961.22
  6. Step 6: Final answer
    x = 11,381.48

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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.