Home / 14,557.98-20,090.72-8,186.57

Finding the Fourth Proportional to 14,557.98, 20,090.72 and 8,186.57

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Solution

The fourth proportional to 14,557.98, 20,090.72 and 8,186.57 is: 11,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,557.98 : 20,090.72 = 8,186.57 : x
  2. Step 2: Convert to fraction form
    14,557.98/20,090.72 = 8,186.57/x
  3. Step 3: Cross multiply
    14,557.98x = 20,090.72 × 8,186.57
  4. Step 4: Simplify right side
    14,557.98x = 164,474,044.70
  5. Step 5: Solve for x
    x = 164,474,044.70/14,557.98
  6. Step 6: Final answer
    x = 11,297.87

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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.