Home / 8,361.23-12,561.43-7,888.36

Finding the Fourth Proportional to 8,361.23, 12,561.43 and 7,888.36

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Solution

The fourth proportional to 8,361.23, 12,561.43 and 7,888.36 is: 11,851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361.23 : 12,561.43 = 7,888.36 : x
  2. Step 2: Convert to fraction form
    8,361.23/12,561.43 = 7,888.36/x
  3. Step 3: Cross multiply
    8,361.23x = 12,561.43 × 7,888.36
  4. Step 4: Simplify right side
    8,361.23x = 99,089,081.95
  5. Step 5: Solve for x
    x = 99,089,081.95/8,361.23
  6. Step 6: Final answer
    x = 11,851.02

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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.