Home / 18,117.12-27,161.28-7,023.36

Finding the Fourth Proportional to 18,117.12, 27,161.28 and 7,023.36

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Solution

The fourth proportional to 18,117.12, 27,161.28 and 7,023.36 is: 10,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.12 : 27,161.28 = 7,023.36 : x
  2. Step 2: Convert to fraction form
    18,117.12/27,161.28 = 7,023.36/x
  3. Step 3: Cross multiply
    18,117.12x = 27,161.28 × 7,023.36
  4. Step 4: Simplify right side
    18,117.12x = 190,763,447.50
  5. Step 5: Solve for x
    x = 190,763,447.50/18,117.12
  6. Step 6: Final answer
    x = 10,529.46

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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.