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Finding the Fourth Proportional to 13,373.01, 18,454.86 and 7,405.11

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Solution

The fourth proportional to 13,373.01, 18,454.86 and 7,405.11 is: 10,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.01 : 18,454.86 = 7,405.11 : x
  2. Step 2: Convert to fraction form
    13,373.01/18,454.86 = 7,405.11/x
  3. Step 3: Cross multiply
    13,373.01x = 18,454.86 × 7,405.11
  4. Step 4: Simplify right side
    13,373.01x = 136,660,268.33
  5. Step 5: Solve for x
    x = 136,660,268.33/13,373.01
  6. Step 6: Final answer
    x = 10,219.11

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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.