Home / 19,787.60-29,684.43-7,941.35

Finding the Fourth Proportional to 19,787.60, 29,684.43 and 7,941.35

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Solution

The fourth proportional to 19,787.60, 29,684.43 and 7,941.35 is: 11,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.60 : 29,684.43 = 7,941.35 : x
  2. Step 2: Convert to fraction form
    19,787.60/29,684.43 = 7,941.35/x
  3. Step 3: Cross multiply
    19,787.60x = 29,684.43 × 7,941.35
  4. Step 4: Simplify right side
    19,787.60x = 235,734,319.26
  5. Step 5: Solve for x
    x = 235,734,319.26/19,787.60
  6. Step 6: Final answer
    x = 11,913.24

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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.