Home / 13,397.70-18,489.26-7,429.93

Finding the Fourth Proportional to 13,397.70, 18,489.26 and 7,429.93

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Solution

The fourth proportional to 13,397.70, 18,489.26 and 7,429.93 is: 10,253.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.70 : 18,489.26 = 7,429.93 : x
  2. Step 2: Convert to fraction form
    13,397.70/18,489.26 = 7,429.93/x
  3. Step 3: Cross multiply
    13,397.70x = 18,489.26 × 7,429.93
  4. Step 4: Simplify right side
    13,397.70x = 137,373,907.55
  5. Step 5: Solve for x
    x = 137,373,907.55/13,397.70
  6. Step 6: Final answer
    x = 10,253.54

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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.