Home / 10,415.86-15,623.72-4,175.78

Finding the Fourth Proportional to 10,415.86, 15,623.72 and 4,175.78

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Solution

The fourth proportional to 10,415.86, 15,623.72 and 4,175.78 is: 6,263.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.86 : 15,623.72 = 4,175.78 : x
  2. Step 2: Convert to fraction form
    10,415.86/15,623.72 = 4,175.78/x
  3. Step 3: Cross multiply
    10,415.86x = 15,623.72 × 4,175.78
  4. Step 4: Simplify right side
    10,415.86x = 65,241,217.50
  5. Step 5: Solve for x
    x = 65,241,217.50/10,415.86
  6. Step 6: Final answer
    x = 6,263.64

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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.