Home / 13,448.84-18,561.66-7,782.62

Finding the Fourth Proportional to 13,448.84, 18,561.66 and 7,782.62

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Solution

The fourth proportional to 13,448.84, 18,561.66 and 7,782.62 is: 10,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.84 : 18,561.66 = 7,782.62 : x
  2. Step 2: Convert to fraction form
    13,448.84/18,561.66 = 7,782.62/x
  3. Step 3: Cross multiply
    13,448.84x = 18,561.66 × 7,782.62
  4. Step 4: Simplify right side
    13,448.84x = 144,458,224.36
  5. Step 5: Solve for x
    x = 144,458,224.36/13,448.84
  6. Step 6: Final answer
    x = 10,741.31

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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.