Home / 14,285.71-19,713.46-7,912.28

Finding the Fourth Proportional to 14,285.71, 19,713.46 and 7,912.28

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Solution

The fourth proportional to 14,285.71, 19,713.46 and 7,912.28 is: 10,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.71 : 19,713.46 = 7,912.28 : x
  2. Step 2: Convert to fraction form
    14,285.71/19,713.46 = 7,912.28/x
  3. Step 3: Cross multiply
    14,285.71x = 19,713.46 × 7,912.28
  4. Step 4: Simplify right side
    14,285.71x = 155,978,277.16
  5. Step 5: Solve for x
    x = 155,978,277.16/14,285.71
  6. Step 6: Final answer
    x = 10,918.48

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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.