Home / 13,915.27-19,202.36-7,945.77

Finding the Fourth Proportional to 13,915.27, 19,202.36 and 7,945.77

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Solution

The fourth proportional to 13,915.27, 19,202.36 and 7,945.77 is: 10,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.27 : 19,202.36 = 7,945.77 : x
  2. Step 2: Convert to fraction form
    13,915.27/19,202.36 = 7,945.77/x
  3. Step 3: Cross multiply
    13,915.27x = 19,202.36 × 7,945.77
  4. Step 4: Simplify right side
    13,915.27x = 152,577,496.29
  5. Step 5: Solve for x
    x = 152,577,496.29/13,915.27
  6. Step 6: Final answer
    x = 10,964.75

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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.