Home / 11,553.57-15,943.67-6,518.31

Finding the Fourth Proportional to 11,553.57, 15,943.67 and 6,518.31

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Solution

The fourth proportional to 11,553.57, 15,943.67 and 6,518.31 is: 8,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,553.57 : 15,943.67 = 6,518.31 : x
  2. Step 2: Convert to fraction form
    11,553.57/15,943.67 = 6,518.31/x
  3. Step 3: Cross multiply
    11,553.57x = 15,943.67 × 6,518.31
  4. Step 4: Simplify right side
    11,553.57x = 103,925,715.66
  5. Step 5: Solve for x
    x = 103,925,715.66/11,553.57
  6. Step 6: Final answer
    x = 8,995.12

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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.