Home / 13,357.49-18,433.18-7,389.04

Finding the Fourth Proportional to 13,357.49, 18,433.18 and 7,389.04

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Solution

The fourth proportional to 13,357.49, 18,433.18 and 7,389.04 is: 10,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.49 : 18,433.18 = 7,389.04 : x
  2. Step 2: Convert to fraction form
    13,357.49/18,433.18 = 7,389.04/x
  3. Step 3: Cross multiply
    13,357.49x = 18,433.18 × 7,389.04
  4. Step 4: Simplify right side
    13,357.49x = 136,203,439.79
  5. Step 5: Solve for x
    x = 136,203,439.79/13,357.49
  6. Step 6: Final answer
    x = 10,196.78

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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.