Home / 13,448.03-18,518.36-9,664.52

Finding the Fourth Proportional to 13,448.03, 18,518.36 and 9,664.52

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Solution

The fourth proportional to 13,448.03, 18,518.36 and 9,664.52 is: 13,308.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.03 : 18,518.36 = 9,664.52 : x
  2. Step 2: Convert to fraction form
    13,448.03/18,518.36 = 9,664.52/x
  3. Step 3: Cross multiply
    13,448.03x = 18,518.36 × 9,664.52
  4. Step 4: Simplify right side
    13,448.03x = 178,970,919.67
  5. Step 5: Solve for x
    x = 178,970,919.67/13,448.03
  6. Step 6: Final answer
    x = 13,308.34

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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.