Home / 10,360.80-15,529.05-5,427.90

Finding the Fourth Proportional to 10,360.80, 15,529.05 and 5,427.90

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Solution

The fourth proportional to 10,360.80, 15,529.05 and 5,427.90 is: 8,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.80 : 15,529.05 = 5,427.90 : x
  2. Step 2: Convert to fraction form
    10,360.80/15,529.05 = 5,427.90/x
  3. Step 3: Cross multiply
    10,360.80x = 15,529.05 × 5,427.90
  4. Step 4: Simplify right side
    10,360.80x = 84,290,130.50
  5. Step 5: Solve for x
    x = 84,290,130.50/10,360.80
  6. Step 6: Final answer
    x = 8,135.48

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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.