Home / 15,084.54-20,816.12-8,370.46

Finding the Fourth Proportional to 15,084.54, 20,816.12 and 8,370.46

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Solution

The fourth proportional to 15,084.54, 20,816.12 and 8,370.46 is: 11,550.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.54 : 20,816.12 = 8,370.46 : x
  2. Step 2: Convert to fraction form
    15,084.54/20,816.12 = 8,370.46/x
  3. Step 3: Cross multiply
    15,084.54x = 20,816.12 × 8,370.46
  4. Step 4: Simplify right side
    15,084.54x = 174,240,499.82
  5. Step 5: Solve for x
    x = 174,240,499.82/15,084.54
  6. Step 6: Final answer
    x = 11,550.93

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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.