Home / 12,389.37-17,096.70-7,353.80

Finding the Fourth Proportional to 12,389.37, 17,096.70 and 7,353.80

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Solution

The fourth proportional to 12,389.37, 17,096.70 and 7,353.80 is: 10,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.37 : 17,096.70 = 7,353.80 : x
  2. Step 2: Convert to fraction form
    12,389.37/17,096.70 = 7,353.80/x
  3. Step 3: Cross multiply
    12,389.37x = 17,096.70 × 7,353.80
  4. Step 4: Simplify right side
    12,389.37x = 125,725,712.46
  5. Step 5: Solve for x
    x = 125,725,712.46/12,389.37
  6. Step 6: Final answer
    x = 10,147.87

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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.