Home / 13,358.75-18,415.82-9,367.47

Finding the Fourth Proportional to 13,358.75, 18,415.82 and 9,367.47

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Solution

The fourth proportional to 13,358.75, 18,415.82 and 9,367.47 is: 12,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.75 : 18,415.82 = 9,367.47 : x
  2. Step 2: Convert to fraction form
    13,358.75/18,415.82 = 9,367.47/x
  3. Step 3: Cross multiply
    13,358.75x = 18,415.82 × 9,367.47
  4. Step 4: Simplify right side
    13,358.75x = 172,509,664.79
  5. Step 5: Solve for x
    x = 172,509,664.79/13,358.75
  6. Step 6: Final answer
    x = 12,913.61

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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.