Home / 14,343.45-21,490.90-8,785.19

Finding the Fourth Proportional to 14,343.45, 21,490.90 and 8,785.19

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Solution

The fourth proportional to 14,343.45, 21,490.90 and 8,785.19 is: 13,162.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.45 : 21,490.90 = 8,785.19 : x
  2. Step 2: Convert to fraction form
    14,343.45/21,490.90 = 8,785.19/x
  3. Step 3: Cross multiply
    14,343.45x = 21,490.90 × 8,785.19
  4. Step 4: Simplify right side
    14,343.45x = 188,801,720.95
  5. Step 5: Solve for x
    x = 188,801,720.95/14,343.45
  6. Step 6: Final answer
    x = 13,162.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.