Home / 10,274.68-15,420.66-8,235.64

Finding the Fourth Proportional to 10,274.68, 15,420.66 and 8,235.64

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Solution

The fourth proportional to 10,274.68, 15,420.66 and 8,235.64 is: 12,360.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.68 : 15,420.66 = 8,235.64 : x
  2. Step 2: Convert to fraction form
    10,274.68/15,420.66 = 8,235.64/x
  3. Step 3: Cross multiply
    10,274.68x = 15,420.66 × 8,235.64
  4. Step 4: Simplify right side
    10,274.68x = 126,999,004.32
  5. Step 5: Solve for x
    x = 126,999,004.32/10,274.68
  6. Step 6: Final answer
    x = 12,360.39

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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.