Home / 15,083.63-20,816.61-8,370.57

Finding the Fourth Proportional to 15,083.63, 20,816.61 and 8,370.57

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Solution

The fourth proportional to 15,083.63, 20,816.61 and 8,370.57 is: 11,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.63 : 20,816.61 = 8,370.57 : x
  2. Step 2: Convert to fraction form
    15,083.63/20,816.61 = 8,370.57/x
  3. Step 3: Cross multiply
    15,083.63x = 20,816.61 × 8,370.57
  4. Step 4: Simplify right side
    15,083.63x = 174,246,984.92
  5. Step 5: Solve for x
    x = 174,246,984.92/15,083.63
  6. Step 6: Final answer
    x = 11,552.06

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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.