Home / 8,977.62-12,389.13-4,999.50

Finding the Fourth Proportional to 8,977.62, 12,389.13 and 4,999.50

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Solution

The fourth proportional to 8,977.62, 12,389.13 and 4,999.50 is: 6,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.62 : 12,389.13 = 4,999.50 : x
  2. Step 2: Convert to fraction form
    8,977.62/12,389.13 = 4,999.50/x
  3. Step 3: Cross multiply
    8,977.62x = 12,389.13 × 4,999.50
  4. Step 4: Simplify right side
    8,977.62x = 61,939,455.44
  5. Step 5: Solve for x
    x = 61,939,455.44/8,977.62
  6. Step 6: Final answer
    x = 6,899.32

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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.