Home / 8,916.60-13,362.10-6,558.20

Finding the Fourth Proportional to 8,916.60, 13,362.10 and 6,558.20

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Solution

The fourth proportional to 8,916.60, 13,362.10 and 6,558.20 is: 9,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.60 : 13,362.10 = 6,558.20 : x
  2. Step 2: Convert to fraction form
    8,916.60/13,362.10 = 6,558.20/x
  3. Step 3: Cross multiply
    8,916.60x = 13,362.10 × 6,558.20
  4. Step 4: Simplify right side
    8,916.60x = 87,631,324.22
  5. Step 5: Solve for x
    x = 87,631,324.22/8,916.60
  6. Step 6: Final answer
    x = 9,827.89

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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.