Home / 13,974.79-19,285.58-7,687.33

Finding the Fourth Proportional to 13,974.79, 19,285.58 and 7,687.33

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Solution

The fourth proportional to 13,974.79, 19,285.58 and 7,687.33 is: 10,608.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.79 : 19,285.58 = 7,687.33 : x
  2. Step 2: Convert to fraction form
    13,974.79/19,285.58 = 7,687.33/x
  3. Step 3: Cross multiply
    13,974.79x = 19,285.58 × 7,687.33
  4. Step 4: Simplify right side
    13,974.79x = 148,254,617.70
  5. Step 5: Solve for x
    x = 148,254,617.70/13,974.79
  6. Step 6: Final answer
    x = 10,608.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.