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Finding the Fourth Proportional to 8,889.03, 13,333.54 and 2,315.20

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Solution

The fourth proportional to 8,889.03, 13,333.54 and 2,315.20 is: 3,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.03 : 13,333.54 = 2,315.20 : x
  2. Step 2: Convert to fraction form
    8,889.03/13,333.54 = 2,315.20/x
  3. Step 3: Cross multiply
    8,889.03x = 13,333.54 × 2,315.20
  4. Step 4: Simplify right side
    8,889.03x = 30,869,811.81
  5. Step 5: Solve for x
    x = 30,869,811.81/8,889.03
  6. Step 6: Final answer
    x = 3,472.80

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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.