Home / 10,415.22-15,622.89-4,259.22

Finding the Fourth Proportional to 10,415.22, 15,622.89 and 4,259.22

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Solution

The fourth proportional to 10,415.22, 15,622.89 and 4,259.22 is: 6,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.22 : 15,622.89 = 4,259.22 : x
  2. Step 2: Convert to fraction form
    10,415.22/15,622.89 = 4,259.22/x
  3. Step 3: Cross multiply
    10,415.22x = 15,622.89 × 4,259.22
  4. Step 4: Simplify right side
    10,415.22x = 66,541,325.55
  5. Step 5: Solve for x
    x = 66,541,325.55/10,415.22
  6. Step 6: Final answer
    x = 6,388.85

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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.