Home / 11,583.66-15,985.40-6,278.46

Finding the Fourth Proportional to 11,583.66, 15,985.40 and 6,278.46

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Solution

The fourth proportional to 11,583.66, 15,985.40 and 6,278.46 is: 8,664.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.66 : 15,985.40 = 6,278.46 : x
  2. Step 2: Convert to fraction form
    11,583.66/15,985.40 = 6,278.46/x
  3. Step 3: Cross multiply
    11,583.66x = 15,985.40 × 6,278.46
  4. Step 4: Simplify right side
    11,583.66x = 100,363,728.38
  5. Step 5: Solve for x
    x = 100,363,728.38/11,583.66
  6. Step 6: Final answer
    x = 8,664.25

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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.