Home / 13,290.02-18,340.26-7,321.94

Finding the Fourth Proportional to 13,290.02, 18,340.26 and 7,321.94

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Solution

The fourth proportional to 13,290.02, 18,340.26 and 7,321.94 is: 10,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.02 : 18,340.26 = 7,321.94 : x
  2. Step 2: Convert to fraction form
    13,290.02/18,340.26 = 7,321.94/x
  3. Step 3: Cross multiply
    13,290.02x = 18,340.26 × 7,321.94
  4. Step 4: Simplify right side
    13,290.02x = 134,286,283.30
  5. Step 5: Solve for x
    x = 134,286,283.30/13,290.02
  6. Step 6: Final answer
    x = 10,104.30

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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.