Home / 8,821.18-12,172.26-5,045.32

Finding the Fourth Proportional to 8,821.18, 12,172.26 and 5,045.32

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Solution

The fourth proportional to 8,821.18, 12,172.26 and 5,045.32 is: 6,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.18 : 12,172.26 = 5,045.32 : x
  2. Step 2: Convert to fraction form
    8,821.18/12,172.26 = 5,045.32/x
  3. Step 3: Cross multiply
    8,821.18x = 12,172.26 × 5,045.32
  4. Step 4: Simplify right side
    8,821.18x = 61,412,946.82
  5. Step 5: Solve for x
    x = 61,412,946.82/8,821.18
  6. Step 6: Final answer
    x = 6,961.99

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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.