Home / 14,640.90-20,199.45-8,266.74

Finding the Fourth Proportional to 14,640.90, 20,199.45 and 8,266.74

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Solution

The fourth proportional to 14,640.90, 20,199.45 and 8,266.74 is: 11,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.90 : 20,199.45 = 8,266.74 : x
  2. Step 2: Convert to fraction form
    14,640.90/20,199.45 = 8,266.74/x
  3. Step 3: Cross multiply
    14,640.90x = 20,199.45 × 8,266.74
  4. Step 4: Simplify right side
    14,640.90x = 166,983,601.29
  5. Step 5: Solve for x
    x = 166,983,601.29/14,640.90
  6. Step 6: Final answer
    x = 11,405.28

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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.