Home / 13,206.07-18,224.90-7,237.95

Finding the Fourth Proportional to 13,206.07, 18,224.90 and 7,237.95

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Solution

The fourth proportional to 13,206.07, 18,224.90 and 7,237.95 is: 9,988.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.07 : 18,224.90 = 7,237.95 : x
  2. Step 2: Convert to fraction form
    13,206.07/18,224.90 = 7,237.95/x
  3. Step 3: Cross multiply
    13,206.07x = 18,224.90 × 7,237.95
  4. Step 4: Simplify right side
    13,206.07x = 131,910,914.96
  5. Step 5: Solve for x
    x = 131,910,914.96/13,206.07
  6. Step 6: Final answer
    x = 9,988.66

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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.