Home / 8,977.60-12,389.25-4,999.02

Finding the Fourth Proportional to 8,977.60, 12,389.25 and 4,999.02

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Solution

The fourth proportional to 8,977.60, 12,389.25 and 4,999.02 is: 6,898.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.60 : 12,389.25 = 4,999.02 : x
  2. Step 2: Convert to fraction form
    8,977.60/12,389.25 = 4,999.02/x
  3. Step 3: Cross multiply
    8,977.60x = 12,389.25 × 4,999.02
  4. Step 4: Simplify right side
    8,977.60x = 61,934,108.54
  5. Step 5: Solve for x
    x = 61,934,108.54/8,977.60
  6. Step 6: Final answer
    x = 6,898.74

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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.