Home / 13,571.36-18,729.96-7,603.28

Finding the Fourth Proportional to 13,571.36, 18,729.96 and 7,603.28

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Solution

The fourth proportional to 13,571.36, 18,729.96 and 7,603.28 is: 10,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.36 : 18,729.96 = 7,603.28 : x
  2. Step 2: Convert to fraction form
    13,571.36/18,729.96 = 7,603.28/x
  3. Step 3: Cross multiply
    13,571.36x = 18,729.96 × 7,603.28
  4. Step 4: Simplify right side
    13,571.36x = 142,409,130.27
  5. Step 5: Solve for x
    x = 142,409,130.27/13,571.36
  6. Step 6: Final answer
    x = 10,493.36

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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.