Home / 12,916.23-19,374.32-3,556.31

Finding the Fourth Proportional to 12,916.23, 19,374.32 and 3,556.31

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Solution

The fourth proportional to 12,916.23, 19,374.32 and 3,556.31 is: 5,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.23 : 19,374.32 = 3,556.31 : x
  2. Step 2: Convert to fraction form
    12,916.23/19,374.32 = 3,556.31/x
  3. Step 3: Cross multiply
    12,916.23x = 19,374.32 × 3,556.31
  4. Step 4: Simplify right side
    12,916.23x = 68,900,999.98
  5. Step 5: Solve for x
    x = 68,900,999.98/12,916.23
  6. Step 6: Final answer
    x = 5,334.45

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1.5x scale

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.