Home / 11,109.30-16,663.95-9,359.70

Finding the Fourth Proportional to 11,109.30, 16,663.95 and 9,359.70

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Solution

The fourth proportional to 11,109.30, 16,663.95 and 9,359.70 is: 14,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.30 : 16,663.95 = 9,359.70 : x
  2. Step 2: Convert to fraction form
    11,109.30/16,663.95 = 9,359.70/x
  3. Step 3: Cross multiply
    11,109.30x = 16,663.95 × 9,359.70
  4. Step 4: Simplify right side
    11,109.30x = 155,969,572.82
  5. Step 5: Solve for x
    x = 155,969,572.82/11,109.30
  6. Step 6: Final answer
    x = 14,039.55

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1.5x scale

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.