Home / 13,350.70-18,423.36-7,300.78

Finding the Fourth Proportional to 13,350.70, 18,423.36 and 7,300.78

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Solution

The fourth proportional to 13,350.70, 18,423.36 and 7,300.78 is: 10,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.70 : 18,423.36 = 7,300.78 : x
  2. Step 2: Convert to fraction form
    13,350.70/18,423.36 = 7,300.78/x
  3. Step 3: Cross multiply
    13,350.70x = 18,423.36 × 7,300.78
  4. Step 4: Simplify right side
    13,350.70x = 134,504,898.22
  5. Step 5: Solve for x
    x = 134,504,898.22/13,350.70
  6. Step 6: Final answer
    x = 10,074.75

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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.