Home / 13,271.94-18,315.36-7,303.44

Finding the Fourth Proportional to 13,271.94, 18,315.36 and 7,303.44

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Solution

The fourth proportional to 13,271.94, 18,315.36 and 7,303.44 is: 10,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.94 : 18,315.36 = 7,303.44 : x
  2. Step 2: Convert to fraction form
    13,271.94/18,315.36 = 7,303.44/x
  3. Step 3: Cross multiply
    13,271.94x = 18,315.36 × 7,303.44
  4. Step 4: Simplify right side
    13,271.94x = 133,765,132.84
  5. Step 5: Solve for x
    x = 133,765,132.84/13,271.94
  6. Step 6: Final answer
    x = 10,078.79

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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.