Home / 12,785.34-19,178.01-4,021.14

Finding the Fourth Proportional to 12,785.34, 19,178.01 and 4,021.14

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Solution

The fourth proportional to 12,785.34, 19,178.01 and 4,021.14 is: 6,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.34 : 19,178.01 = 4,021.14 : x
  2. Step 2: Convert to fraction form
    12,785.34/19,178.01 = 4,021.14/x
  3. Step 3: Cross multiply
    12,785.34x = 19,178.01 × 4,021.14
  4. Step 4: Simplify right side
    12,785.34x = 77,117,463.13
  5. Step 5: Solve for x
    x = 77,117,463.13/12,785.34
  6. Step 6: Final answer
    x = 6,031.71

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Similar ratio
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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.