Home / 19,787.94-29,678.73-7,313.85

Finding the Fourth Proportional to 19,787.94, 29,678.73 and 7,313.85

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Solution

The fourth proportional to 19,787.94, 29,678.73 and 7,313.85 is: 10,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.94 : 29,678.73 = 7,313.85 : x
  2. Step 2: Convert to fraction form
    19,787.94/29,678.73 = 7,313.85/x
  3. Step 3: Cross multiply
    19,787.94x = 29,678.73 × 7,313.85
  4. Step 4: Simplify right side
    19,787.94x = 217,065,779.41
  5. Step 5: Solve for x
    x = 217,065,779.41/19,787.94
  6. Step 6: Final answer
    x = 10,969.60

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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.