Home / 15,555.79-21,467.46-8,482.33

Finding the Fourth Proportional to 15,555.79, 21,467.46 and 8,482.33

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Solution

The fourth proportional to 15,555.79, 21,467.46 and 8,482.33 is: 11,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.79 : 21,467.46 = 8,482.33 : x
  2. Step 2: Convert to fraction form
    15,555.79/21,467.46 = 8,482.33/x
  3. Step 3: Cross multiply
    15,555.79x = 21,467.46 × 8,482.33
  4. Step 4: Simplify right side
    15,555.79x = 182,094,079.98
  5. Step 5: Solve for x
    x = 182,094,079.98/15,555.79
  6. Step 6: Final answer
    x = 11,705.87

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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.