Home / 13,193.70-18,206.59-7,224.21

Finding the Fourth Proportional to 13,193.70, 18,206.59 and 7,224.21

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Solution

The fourth proportional to 13,193.70, 18,206.59 and 7,224.21 is: 9,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.70 : 18,206.59 = 7,224.21 : x
  2. Step 2: Convert to fraction form
    13,193.70/18,206.59 = 7,224.21/x
  3. Step 3: Cross multiply
    13,193.70x = 18,206.59 × 7,224.21
  4. Step 4: Simplify right side
    13,193.70x = 131,528,245.76
  5. Step 5: Solve for x
    x = 131,528,245.76/13,193.70
  6. Step 6: Final answer
    x = 9,969.02

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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.