Home / 13,399.02-18,495.45-9,147.04

Finding the Fourth Proportional to 13,399.02, 18,495.45 and 9,147.04

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Solution

The fourth proportional to 13,399.02, 18,495.45 and 9,147.04 is: 12,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.02 : 18,495.45 = 9,147.04 : x
  2. Step 2: Convert to fraction form
    13,399.02/18,495.45 = 9,147.04/x
  3. Step 3: Cross multiply
    13,399.02x = 18,495.45 × 9,147.04
  4. Step 4: Simplify right side
    13,399.02x = 169,178,620.97
  5. Step 5: Solve for x
    x = 169,178,620.97/13,399.02
  6. Step 6: Final answer
    x = 12,626.19

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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.