Home / 13,206.40-18,224.16-7,237

Finding the Fourth Proportional to 13,206.40, 18,224.16 and 7,237

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Solution

The fourth proportional to 13,206.40, 18,224.16 and 7,237 is: 9,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.40 : 18,224.16 = 7,237 : x
  2. Step 2: Convert to fraction form
    13,206.40/18,224.16 = 7,237/x
  3. Step 3: Cross multiply
    13,206.40x = 18,224.16 × 7,237
  4. Step 4: Simplify right side
    13,206.40x = 131,888,245.92
  5. Step 5: Solve for x
    x = 131,888,245.92/13,206.40
  6. Step 6: Final answer
    x = 9,986.69

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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.