Home / 14,375.45-21,518.58-7,785.29

Finding the Fourth Proportional to 14,375.45, 21,518.58 and 7,785.29

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Solution

The fourth proportional to 14,375.45, 21,518.58 and 7,785.29 is: 11,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,375.45 : 21,518.58 = 7,785.29 : x
  2. Step 2: Convert to fraction form
    14,375.45/21,518.58 = 7,785.29/x
  3. Step 3: Cross multiply
    14,375.45x = 21,518.58 × 7,785.29
  4. Step 4: Simplify right side
    14,375.45x = 167,528,385.69
  5. Step 5: Solve for x
    x = 167,528,385.69/14,375.45
  6. Step 6: Final answer
    x = 11,653.78

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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.