Home / 12,383.78-18,573.62-4,590.76

Finding the Fourth Proportional to 12,383.78, 18,573.62 and 4,590.76

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Solution

The fourth proportional to 12,383.78, 18,573.62 and 4,590.76 is: 6,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.78 : 18,573.62 = 4,590.76 : x
  2. Step 2: Convert to fraction form
    12,383.78/18,573.62 = 4,590.76/x
  3. Step 3: Cross multiply
    12,383.78x = 18,573.62 × 4,590.76
  4. Step 4: Simplify right side
    12,383.78x = 85,267,031.75
  5. Step 5: Solve for x
    x = 85,267,031.75/12,383.78
  6. Step 6: Final answer
    x = 6,885.38

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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.