Home / 13,274.76-19,876.56-7,021.80

Finding the Fourth Proportional to 13,274.76, 19,876.56 and 7,021.80

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Solution

The fourth proportional to 13,274.76, 19,876.56 and 7,021.80 is: 10,513.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.76 : 19,876.56 = 7,021.80 : x
  2. Step 2: Convert to fraction form
    13,274.76/19,876.56 = 7,021.80/x
  3. Step 3: Cross multiply
    13,274.76x = 19,876.56 × 7,021.80
  4. Step 4: Simplify right side
    13,274.76x = 139,569,229.01
  5. Step 5: Solve for x
    x = 139,569,229.01/13,274.76
  6. Step 6: Final answer
    x = 10,513.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.