Home / 15,555.32-21,467.62-8,843.05

Finding the Fourth Proportional to 15,555.32, 21,467.62 and 8,843.05

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Solution

The fourth proportional to 15,555.32, 21,467.62 and 8,843.05 is: 12,204.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.32 : 21,467.62 = 8,843.05 : x
  2. Step 2: Convert to fraction form
    15,555.32/21,467.62 = 8,843.05/x
  3. Step 3: Cross multiply
    15,555.32x = 21,467.62 × 8,843.05
  4. Step 4: Simplify right side
    15,555.32x = 189,839,225.19
  5. Step 5: Solve for x
    x = 189,839,225.19/15,555.32
  6. Step 6: Final answer
    x = 12,204.14

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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.