Home / 13,405.23-18,500.07-7,741.03

Finding the Fourth Proportional to 13,405.23, 18,500.07 and 7,741.03

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Solution

The fourth proportional to 13,405.23, 18,500.07 and 7,741.03 is: 10,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.23 : 18,500.07 = 7,741.03 : x
  2. Step 2: Convert to fraction form
    13,405.23/18,500.07 = 7,741.03/x
  3. Step 3: Cross multiply
    13,405.23x = 18,500.07 × 7,741.03
  4. Step 4: Simplify right side
    13,405.23x = 143,209,596.87
  5. Step 5: Solve for x
    x = 143,209,596.87/13,405.23
  6. Step 6: Final answer
    x = 10,683.11

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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.