Home / 18,116.68-27,173.12-6,430.56

Finding the Fourth Proportional to 18,116.68, 27,173.12 and 6,430.56

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Solution

The fourth proportional to 18,116.68, 27,173.12 and 6,430.56 is: 9,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.68 : 27,173.12 = 6,430.56 : x
  2. Step 2: Convert to fraction form
    18,116.68/27,173.12 = 6,430.56/x
  3. Step 3: Cross multiply
    18,116.68x = 27,173.12 × 6,430.56
  4. Step 4: Simplify right side
    18,116.68x = 174,738,378.55
  5. Step 5: Solve for x
    x = 174,738,378.55/18,116.68
  6. Step 6: Final answer
    x = 9,645.17

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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.