Home / 13,345.50-18,416.07-7,376.82

Finding the Fourth Proportional to 13,345.50, 18,416.07 and 7,376.82

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Solution

The fourth proportional to 13,345.50, 18,416.07 and 7,376.82 is: 10,179.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.50 : 18,416.07 = 7,376.82 : x
  2. Step 2: Convert to fraction form
    13,345.50/18,416.07 = 7,376.82/x
  3. Step 3: Cross multiply
    13,345.50x = 18,416.07 × 7,376.82
  4. Step 4: Simplify right side
    13,345.50x = 135,852,033.50
  5. Step 5: Solve for x
    x = 135,852,033.50/13,345.50
  6. Step 6: Final answer
    x = 10,179.61

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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.