Home / 13,581.68-18,741.67-7,612.19

Finding the Fourth Proportional to 13,581.68, 18,741.67 and 7,612.19

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Solution

The fourth proportional to 13,581.68, 18,741.67 and 7,612.19 is: 10,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.68 : 18,741.67 = 7,612.19 : x
  2. Step 2: Convert to fraction form
    13,581.68/18,741.67 = 7,612.19/x
  3. Step 3: Cross multiply
    13,581.68x = 18,741.67 × 7,612.19
  4. Step 4: Simplify right side
    13,581.68x = 142,665,040.22
  5. Step 5: Solve for x
    x = 142,665,040.22/13,581.68
  6. Step 6: Final answer
    x = 10,504.23

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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.