Home / 10,666.86-15,999.70-3,271.35

Finding the Fourth Proportional to 10,666.86, 15,999.70 and 3,271.35

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Solution

The fourth proportional to 10,666.86, 15,999.70 and 3,271.35 is: 4,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.86 : 15,999.70 = 3,271.35 : x
  2. Step 2: Convert to fraction form
    10,666.86/15,999.70 = 3,271.35/x
  3. Step 3: Cross multiply
    10,666.86x = 15,999.70 × 3,271.35
  4. Step 4: Simplify right side
    10,666.86x = 52,340,618.60
  5. Step 5: Solve for x
    x = 52,340,618.60/10,666.86
  6. Step 6: Final answer
    x = 4,906.84

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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.