Home / 13,321.02-18,382.21-7,352.53

Finding the Fourth Proportional to 13,321.02, 18,382.21 and 7,352.53

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Solution

The fourth proportional to 13,321.02, 18,382.21 and 7,352.53 is: 10,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.02 : 18,382.21 = 7,352.53 : x
  2. Step 2: Convert to fraction form
    13,321.02/18,382.21 = 7,352.53/x
  3. Step 3: Cross multiply
    13,321.02x = 18,382.21 × 7,352.53
  4. Step 4: Simplify right side
    13,321.02x = 135,155,750.49
  5. Step 5: Solve for x
    x = 135,155,750.49/13,321.02
  6. Step 6: Final answer
    x = 10,146.05

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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.