Home / 13,785.74-19,025.30-7,817.93

Finding the Fourth Proportional to 13,785.74, 19,025.30 and 7,817.93

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Solution

The fourth proportional to 13,785.74, 19,025.30 and 7,817.93 is: 10,789.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.74 : 19,025.30 = 7,817.93 : x
  2. Step 2: Convert to fraction form
    13,785.74/19,025.30 = 7,817.93/x
  3. Step 3: Cross multiply
    13,785.74x = 19,025.30 × 7,817.93
  4. Step 4: Simplify right side
    13,785.74x = 148,738,388.05
  5. Step 5: Solve for x
    x = 148,738,388.05/13,785.74
  6. Step 6: Final answer
    x = 10,789.30

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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.