Home / 15,081.04-20,812.38-8,366.68

Finding the Fourth Proportional to 15,081.04, 20,812.38 and 8,366.68

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Solution

The fourth proportional to 15,081.04, 20,812.38 and 8,366.68 is: 11,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.04 : 20,812.38 = 8,366.68 : x
  2. Step 2: Convert to fraction form
    15,081.04/20,812.38 = 8,366.68/x
  3. Step 3: Cross multiply
    15,081.04x = 20,812.38 × 8,366.68
  4. Step 4: Simplify right side
    15,081.04x = 174,130,523.50
  5. Step 5: Solve for x
    x = 174,130,523.50/15,081.04
  6. Step 6: Final answer
    x = 11,546.32

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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.