Home / 10,348.88-15,533.03-5,422.05

Finding the Fourth Proportional to 10,348.88, 15,533.03 and 5,422.05

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Solution

The fourth proportional to 10,348.88, 15,533.03 and 5,422.05 is: 8,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.88 : 15,533.03 = 5,422.05 : x
  2. Step 2: Convert to fraction form
    10,348.88/15,533.03 = 5,422.05/x
  3. Step 3: Cross multiply
    10,348.88x = 15,533.03 × 5,422.05
  4. Step 4: Simplify right side
    10,348.88x = 84,220,865.31
  5. Step 5: Solve for x
    x = 84,220,865.31/10,348.88
  6. Step 6: Final answer
    x = 8,138.16

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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.