Home / 14,521.85-20,039.89-8,148.56

Finding the Fourth Proportional to 14,521.85, 20,039.89 and 8,148.56

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Solution

The fourth proportional to 14,521.85, 20,039.89 and 8,148.56 is: 11,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.85 : 20,039.89 = 8,148.56 : x
  2. Step 2: Convert to fraction form
    14,521.85/20,039.89 = 8,148.56/x
  3. Step 3: Cross multiply
    14,521.85x = 20,039.89 × 8,148.56
  4. Step 4: Simplify right side
    14,521.85x = 163,296,246.06
  5. Step 5: Solve for x
    x = 163,296,246.06/14,521.85
  6. Step 6: Final answer
    x = 11,244.87

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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.