Home / 9,319.86-13,998.02-8,003.21

Finding the Fourth Proportional to 9,319.86, 13,998.02 and 8,003.21

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Solution

The fourth proportional to 9,319.86, 13,998.02 and 8,003.21 is: 12,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.86 : 13,998.02 = 8,003.21 : x
  2. Step 2: Convert to fraction form
    9,319.86/13,998.02 = 8,003.21/x
  3. Step 3: Cross multiply
    9,319.86x = 13,998.02 × 8,003.21
  4. Step 4: Simplify right side
    9,319.86x = 112,028,983.64
  5. Step 5: Solve for x
    x = 112,028,983.64/9,319.86
  6. Step 6: Final answer
    x = 12,020.46

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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.