Home / 13,816.24-19,065.70-7,847.12

Finding the Fourth Proportional to 13,816.24, 19,065.70 and 7,847.12

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Solution

The fourth proportional to 13,816.24, 19,065.70 and 7,847.12 is: 10,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.24 : 19,065.70 = 7,847.12 : x
  2. Step 2: Convert to fraction form
    13,816.24/19,065.70 = 7,847.12/x
  3. Step 3: Cross multiply
    13,816.24x = 19,065.70 × 7,847.12
  4. Step 4: Simplify right side
    13,816.24x = 149,610,835.78
  5. Step 5: Solve for x
    x = 149,610,835.78/13,816.24
  6. Step 6: Final answer
    x = 10,828.62

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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.