Home / 15,081.14-20,809.32-8,706.26

Finding the Fourth Proportional to 15,081.14, 20,809.32 and 8,706.26

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Solution

The fourth proportional to 15,081.14, 20,809.32 and 8,706.26 is: 12,013.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.14 : 20,809.32 = 8,706.26 : x
  2. Step 2: Convert to fraction form
    15,081.14/20,809.32 = 8,706.26/x
  3. Step 3: Cross multiply
    15,081.14x = 20,809.32 × 8,706.26
  4. Step 4: Simplify right side
    15,081.14x = 181,171,350.34
  5. Step 5: Solve for x
    x = 181,171,350.34/15,081.14
  6. Step 6: Final answer
    x = 12,013.11

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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.