Home / 18,138.03-27,196.54-7,031.72

Finding the Fourth Proportional to 18,138.03, 27,196.54 and 7,031.72

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Solution

The fourth proportional to 18,138.03, 27,196.54 and 7,031.72 is: 10,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.03 : 27,196.54 = 7,031.72 : x
  2. Step 2: Convert to fraction form
    18,138.03/27,196.54 = 7,031.72/x
  3. Step 3: Cross multiply
    18,138.03x = 27,196.54 × 7,031.72
  4. Step 4: Simplify right side
    18,138.03x = 191,238,395.52
  5. Step 5: Solve for x
    x = 191,238,395.52/18,138.03
  6. Step 6: Final answer
    x = 10,543.50

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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.