Home / 11,269.02-15,550.26-7,020.57

Finding the Fourth Proportional to 11,269.02, 15,550.26 and 7,020.57

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Solution

The fourth proportional to 11,269.02, 15,550.26 and 7,020.57 is: 9,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.02 : 15,550.26 = 7,020.57 : x
  2. Step 2: Convert to fraction form
    11,269.02/15,550.26 = 7,020.57/x
  3. Step 3: Cross multiply
    11,269.02x = 15,550.26 × 7,020.57
  4. Step 4: Simplify right side
    11,269.02x = 109,171,688.85
  5. Step 5: Solve for x
    x = 109,171,688.85/11,269.02
  6. Step 6: Final answer
    x = 9,687.77

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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.