Home / 8,361.12-12,543.60-2,814.32

Finding the Fourth Proportional to 8,361.12, 12,543.60 and 2,814.32

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Solution

The fourth proportional to 8,361.12, 12,543.60 and 2,814.32 is: 4,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.12 : 12,543.60 = 2,814.32 : x
  2. Step 2: Convert to fraction form
    8,361.12/12,543.60 = 2,814.32/x
  3. Step 3: Cross multiply
    8,361.12x = 12,543.60 × 2,814.32
  4. Step 4: Simplify right side
    8,361.12x = 35,301,641.63
  5. Step 5: Solve for x
    x = 35,301,641.63/8,361.12
  6. Step 6: Final answer
    x = 4,222.12

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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.