Home / 18,128.48-27,197.04-7,035.44

Finding the Fourth Proportional to 18,128.48, 27,197.04 and 7,035.44

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Solution

The fourth proportional to 18,128.48, 27,197.04 and 7,035.44 is: 10,554.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.48 : 27,197.04 = 7,035.44 : x
  2. Step 2: Convert to fraction form
    18,128.48/27,197.04 = 7,035.44/x
  3. Step 3: Cross multiply
    18,128.48x = 27,197.04 × 7,035.44
  4. Step 4: Simplify right side
    18,128.48x = 191,343,143.10
  5. Step 5: Solve for x
    x = 191,343,143.10/18,128.48
  6. Step 6: Final answer
    x = 10,554.84

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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.