Home / 12,904.40-19,356.60-3,670.48

Finding the Fourth Proportional to 12,904.40, 19,356.60 and 3,670.48

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Solution

The fourth proportional to 12,904.40, 19,356.60 and 3,670.48 is: 5,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.40 : 19,356.60 = 3,670.48 : x
  2. Step 2: Convert to fraction form
    12,904.40/19,356.60 = 3,670.48/x
  3. Step 3: Cross multiply
    12,904.40x = 19,356.60 × 3,670.48
  4. Step 4: Simplify right side
    12,904.40x = 71,048,013.17
  5. Step 5: Solve for x
    x = 71,048,013.17/12,904.40
  6. Step 6: Final answer
    x = 5,505.72

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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.