Home / 13,443.73-18,552.69-8,135.47

Finding the Fourth Proportional to 13,443.73, 18,552.69 and 8,135.47

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Solution

The fourth proportional to 13,443.73, 18,552.69 and 8,135.47 is: 11,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.73 : 18,552.69 = 8,135.47 : x
  2. Step 2: Convert to fraction form
    13,443.73/18,552.69 = 8,135.47/x
  3. Step 3: Cross multiply
    13,443.73x = 18,552.69 × 8,135.47
  4. Step 4: Simplify right side
    13,443.73x = 150,934,852.91
  5. Step 5: Solve for x
    x = 150,934,852.91/13,443.73
  6. Step 6: Final answer
    x = 11,227.16

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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.