Home / 8,897.78-13,342.13-2,972.54

Finding the Fourth Proportional to 8,897.78, 13,342.13 and 2,972.54

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Solution

The fourth proportional to 8,897.78, 13,342.13 and 2,972.54 is: 4,457.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.78 : 13,342.13 = 2,972.54 : x
  2. Step 2: Convert to fraction form
    8,897.78/13,342.13 = 2,972.54/x
  3. Step 3: Cross multiply
    8,897.78x = 13,342.13 × 2,972.54
  4. Step 4: Simplify right side
    8,897.78x = 39,660,015.11
  5. Step 5: Solve for x
    x = 39,660,015.11/8,897.78
  6. Step 6: Final answer
    x = 4,457.29

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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.