Home / 12,019.19-18,031.76-4,997.09

Finding the Fourth Proportional to 12,019.19, 18,031.76 and 4,997.09

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Solution

The fourth proportional to 12,019.19, 18,031.76 and 4,997.09 is: 7,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.19 : 18,031.76 = 4,997.09 : x
  2. Step 2: Convert to fraction form
    12,019.19/18,031.76 = 4,997.09/x
  3. Step 3: Cross multiply
    12,019.19x = 18,031.76 × 4,997.09
  4. Step 4: Simplify right side
    12,019.19x = 90,106,302.59
  5. Step 5: Solve for x
    x = 90,106,302.59/12,019.19
  6. Step 6: Final answer
    x = 7,496.87

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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.