Home / 16,902.80-25,368.60-7,557.20

Finding the Fourth Proportional to 16,902.80, 25,368.60 and 7,557.20

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Solution

The fourth proportional to 16,902.80, 25,368.60 and 7,557.20 is: 11,342.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,902.80 : 25,368.60 = 7,557.20 : x
  2. Step 2: Convert to fraction form
    16,902.80/25,368.60 = 7,557.20/x
  3. Step 3: Cross multiply
    16,902.80x = 25,368.60 × 7,557.20
  4. Step 4: Simplify right side
    16,902.80x = 191,715,583.92
  5. Step 5: Solve for x
    x = 191,715,583.92/16,902.80
  6. Step 6: Final answer
    x = 11,342.24

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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.