Home / 10,511.47-15,771.41-4,271.96

Finding the Fourth Proportional to 10,511.47, 15,771.41 and 4,271.96

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Solution

The fourth proportional to 10,511.47, 15,771.41 and 4,271.96 is: 6,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.47 : 15,771.41 = 4,271.96 : x
  2. Step 2: Convert to fraction form
    10,511.47/15,771.41 = 4,271.96/x
  3. Step 3: Cross multiply
    10,511.47x = 15,771.41 × 4,271.96
  4. Step 4: Simplify right side
    10,511.47x = 67,374,732.45
  5. Step 5: Solve for x
    x = 67,374,732.45/10,511.47
  6. Step 6: Final answer
    x = 6,409.64

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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.