Home / 14,910.69-20,575.47-8,777.75

Finding the Fourth Proportional to 14,910.69, 20,575.47 and 8,777.75

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Solution

The fourth proportional to 14,910.69, 20,575.47 and 8,777.75 is: 12,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,910.69 : 20,575.47 = 8,777.75 : x
  2. Step 2: Convert to fraction form
    14,910.69/20,575.47 = 8,777.75/x
  3. Step 3: Cross multiply
    14,910.69x = 20,575.47 × 8,777.75
  4. Step 4: Simplify right side
    14,910.69x = 180,606,228.92
  5. Step 5: Solve for x
    x = 180,606,228.92/14,910.69
  6. Step 6: Final answer
    x = 12,112.53

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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.