Home / 15,084.51-20,816.66-8,370.14

Finding the Fourth Proportional to 15,084.51, 20,816.66 and 8,370.14

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Solution

The fourth proportional to 15,084.51, 20,816.66 and 8,370.14 is: 11,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,084.51 : 20,816.66 = 8,370.14 : x
  2. Step 2: Convert to fraction form
    15,084.51/20,816.66 = 8,370.14/x
  3. Step 3: Cross multiply
    15,084.51x = 20,816.66 × 8,370.14
  4. Step 4: Simplify right side
    15,084.51x = 174,238,212.60
  5. Step 5: Solve for x
    x = 174,238,212.60/15,084.51
  6. Step 6: Final answer
    x = 11,550.80

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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.