Home / 11,801.40-16,285.68-6,495.90

Finding the Fourth Proportional to 11,801.40, 16,285.68 and 6,495.90

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Solution

The fourth proportional to 11,801.40, 16,285.68 and 6,495.90 is: 8,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.40 : 16,285.68 = 6,495.90 : x
  2. Step 2: Convert to fraction form
    11,801.40/16,285.68 = 6,495.90/x
  3. Step 3: Cross multiply
    11,801.40x = 16,285.68 × 6,495.90
  4. Step 4: Simplify right side
    11,801.40x = 105,790,148.71
  5. Step 5: Solve for x
    x = 105,790,148.71/11,801.40
  6. Step 6: Final answer
    x = 8,964.20

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1.5x scale

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.