Home / 12,698.80-19,051.44-4,905.52

Finding the Fourth Proportional to 12,698.80, 19,051.44 and 4,905.52

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Solution

The fourth proportional to 12,698.80, 19,051.44 and 4,905.52 is: 7,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.80 : 19,051.44 = 4,905.52 : x
  2. Step 2: Convert to fraction form
    12,698.80/19,051.44 = 4,905.52/x
  3. Step 3: Cross multiply
    12,698.80x = 19,051.44 × 4,905.52
  4. Step 4: Simplify right side
    12,698.80x = 93,457,219.95
  5. Step 5: Solve for x
    x = 93,457,219.95/12,698.80
  6. Step 6: Final answer
    x = 7,359.53

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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.