Home / 13,346.36-18,419.38-7,681.32

Finding the Fourth Proportional to 13,346.36, 18,419.38 and 7,681.32

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Solution

The fourth proportional to 13,346.36, 18,419.38 and 7,681.32 is: 10,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.36 : 18,419.38 = 7,681.32 : x
  2. Step 2: Convert to fraction form
    13,346.36/18,419.38 = 7,681.32/x
  3. Step 3: Cross multiply
    13,346.36x = 18,419.38 × 7,681.32
  4. Step 4: Simplify right side
    13,346.36x = 141,485,151.98
  5. Step 5: Solve for x
    x = 141,485,151.98/13,346.36
  6. Step 6: Final answer
    x = 10,601.03

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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.