Home / 8,074.32-11,139.86-4,536.78

Finding the Fourth Proportional to 8,074.32, 11,139.86 and 4,536.78

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Solution

The fourth proportional to 8,074.32, 11,139.86 and 4,536.78 is: 6,259.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.32 : 11,139.86 = 4,536.78 : x
  2. Step 2: Convert to fraction form
    8,074.32/11,139.86 = 4,536.78/x
  3. Step 3: Cross multiply
    8,074.32x = 11,139.86 × 4,536.78
  4. Step 4: Simplify right side
    8,074.32x = 50,539,094.05
  5. Step 5: Solve for x
    x = 50,539,094.05/8,074.32
  6. Step 6: Final answer
    x = 6,259.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.