Home / 13,197.90-18,213.61-7,533.57

Finding the Fourth Proportional to 13,197.90, 18,213.61 and 7,533.57

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Solution

The fourth proportional to 13,197.90, 18,213.61 and 7,533.57 is: 10,396.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.90 : 18,213.61 = 7,533.57 : x
  2. Step 2: Convert to fraction form
    13,197.90/18,213.61 = 7,533.57/x
  3. Step 3: Cross multiply
    13,197.90x = 18,213.61 × 7,533.57
  4. Step 4: Simplify right side
    13,197.90x = 137,213,569.48
  5. Step 5: Solve for x
    x = 137,213,569.48/13,197.90
  6. Step 6: Final answer
    x = 10,396.62

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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.