Home / 13,235.93-18,264.22-7,930.61

Finding the Fourth Proportional to 13,235.93, 18,264.22 and 7,930.61

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Solution

The fourth proportional to 13,235.93, 18,264.22 and 7,930.61 is: 10,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.93 : 18,264.22 = 7,930.61 : x
  2. Step 2: Convert to fraction form
    13,235.93/18,264.22 = 7,930.61/x
  3. Step 3: Cross multiply
    13,235.93x = 18,264.22 × 7,930.61
  4. Step 4: Simplify right side
    13,235.93x = 144,846,405.77
  5. Step 5: Solve for x
    x = 144,846,405.77/13,235.93
  6. Step 6: Final answer
    x = 10,943.42

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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.