Home / 14,775.91-20,394.26-8,491.93

Finding the Fourth Proportional to 14,775.91, 20,394.26 and 8,491.93

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Solution

The fourth proportional to 14,775.91, 20,394.26 and 8,491.93 is: 11,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.91 : 20,394.26 = 8,491.93 : x
  2. Step 2: Convert to fraction form
    14,775.91/20,394.26 = 8,491.93/x
  3. Step 3: Cross multiply
    14,775.91x = 20,394.26 × 8,491.93
  4. Step 4: Simplify right side
    14,775.91x = 173,186,628.32
  5. Step 5: Solve for x
    x = 173,186,628.32/14,775.91
  6. Step 6: Final answer
    x = 11,720.88

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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.