Home / 18,736.17-28,100.65-8,738.16

Finding the Fourth Proportional to 18,736.17, 28,100.65 and 8,738.16

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Solution

The fourth proportional to 18,736.17, 28,100.65 and 8,738.16 is: 13,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.17 : 28,100.65 = 8,738.16 : x
  2. Step 2: Convert to fraction form
    18,736.17/28,100.65 = 8,738.16/x
  3. Step 3: Cross multiply
    18,736.17x = 28,100.65 × 8,738.16
  4. Step 4: Simplify right side
    18,736.17x = 245,547,975.80
  5. Step 5: Solve for x
    x = 245,547,975.80/18,736.17
  6. Step 6: Final answer
    x = 13,105.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.