Home / 13,206.16-18,224.61-7,238.38

Finding the Fourth Proportional to 13,206.16, 18,224.61 and 7,238.38

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Solution

The fourth proportional to 13,206.16, 18,224.61 and 7,238.38 is: 9,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.16 : 18,224.61 = 7,238.38 : x
  2. Step 2: Convert to fraction form
    13,206.16/18,224.61 = 7,238.38/x
  3. Step 3: Cross multiply
    13,206.16x = 18,224.61 × 7,238.38
  4. Step 4: Simplify right side
    13,206.16x = 131,916,652.53
  5. Step 5: Solve for x
    x = 131,916,652.53/13,206.16
  6. Step 6: Final answer
    x = 9,989.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.