Home / 10,289.26-14,185.92-8,398.90

Finding the Fourth Proportional to 10,289.26, 14,185.92 and 8,398.90

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Solution

The fourth proportional to 10,289.26, 14,185.92 and 8,398.90 is: 11,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.26 : 14,185.92 = 8,398.90 : x
  2. Step 2: Convert to fraction form
    10,289.26/14,185.92 = 8,398.90/x
  3. Step 3: Cross multiply
    10,289.26x = 14,185.92 × 8,398.90
  4. Step 4: Simplify right side
    10,289.26x = 119,146,123.49
  5. Step 5: Solve for x
    x = 119,146,123.49/10,289.26
  6. Step 6: Final answer
    x = 11,579.66

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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.