Home / 19,666.72-29,500.80-8,558.20

Finding the Fourth Proportional to 19,666.72, 29,500.80 and 8,558.20

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Solution

The fourth proportional to 19,666.72, 29,500.80 and 8,558.20 is: 12,837.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.72 : 29,500.80 = 8,558.20 : x
  2. Step 2: Convert to fraction form
    19,666.72/29,500.80 = 8,558.20/x
  3. Step 3: Cross multiply
    19,666.72x = 29,500.80 × 8,558.20
  4. Step 4: Simplify right side
    19,666.72x = 252,473,746.56
  5. Step 5: Solve for x
    x = 252,473,746.56/19,666.72
  6. Step 6: Final answer
    x = 12,837.61

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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.