Home / 14,215.80-19,622.70-8,553.72

Finding the Fourth Proportional to 14,215.80, 19,622.70 and 8,553.72

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Solution

The fourth proportional to 14,215.80, 19,622.70 and 8,553.72 is: 11,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.80 : 19,622.70 = 8,553.72 : x
  2. Step 2: Convert to fraction form
    14,215.80/19,622.70 = 8,553.72/x
  3. Step 3: Cross multiply
    14,215.80x = 19,622.70 × 8,553.72
  4. Step 4: Simplify right side
    14,215.80x = 167,847,081.44
  5. Step 5: Solve for x
    x = 167,847,081.44/14,215.80
  6. Step 6: Final answer
    x = 11,807.08

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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.