Home / 10,583.80-15,872.40-7,317.88

Finding the Fourth Proportional to 10,583.80, 15,872.40 and 7,317.88

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Solution

The fourth proportional to 10,583.80, 15,872.40 and 7,317.88 is: 10,974.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,583.80 : 15,872.40 = 7,317.88 : x
  2. Step 2: Convert to fraction form
    10,583.80/15,872.40 = 7,317.88/x
  3. Step 3: Cross multiply
    10,583.80x = 15,872.40 × 7,317.88
  4. Step 4: Simplify right side
    10,583.80x = 116,152,318.51
  5. Step 5: Solve for x
    x = 116,152,318.51/10,583.80
  6. Step 6: Final answer
    x = 10,974.54

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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.