Home / 8,731.02-12,054.95-6,819

Finding the Fourth Proportional to 8,731.02, 12,054.95 and 6,819

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Solution

The fourth proportional to 8,731.02, 12,054.95 and 6,819 is: 9,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.02 : 12,054.95 = 6,819 : x
  2. Step 2: Convert to fraction form
    8,731.02/12,054.95 = 6,819/x
  3. Step 3: Cross multiply
    8,731.02x = 12,054.95 × 6,819
  4. Step 4: Simplify right side
    8,731.02x = 82,202,669.96
  5. Step 5: Solve for x
    x = 82,202,669.96/8,731.02
  6. Step 6: Final answer
    x = 9,415.01

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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.