Home / 14,865.85-20,514.90-8,151.76

Finding the Fourth Proportional to 14,865.85, 20,514.90 and 8,151.76

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Solution

The fourth proportional to 14,865.85, 20,514.90 and 8,151.76 is: 11,249.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.85 : 20,514.90 = 8,151.76 : x
  2. Step 2: Convert to fraction form
    14,865.85/20,514.90 = 8,151.76/x
  3. Step 3: Cross multiply
    14,865.85x = 20,514.90 × 8,151.76
  4. Step 4: Simplify right side
    14,865.85x = 167,232,541.22
  5. Step 5: Solve for x
    x = 167,232,541.22/14,865.85
  6. Step 6: Final answer
    x = 11,249.44

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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.