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Finding the Fourth Proportional to 8,889.86, 13,337.67 and 4,273.22

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Solution

The fourth proportional to 8,889.86, 13,337.67 and 4,273.22 is: 6,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.86 : 13,337.67 = 4,273.22 : x
  2. Step 2: Convert to fraction form
    8,889.86/13,337.67 = 4,273.22/x
  3. Step 3: Cross multiply
    8,889.86x = 13,337.67 × 4,273.22
  4. Step 4: Simplify right side
    8,889.86x = 56,994,798.20
  5. Step 5: Solve for x
    x = 56,994,798.20/8,889.86
  6. Step 6: Final answer
    x = 6,411.21

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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.