Home / 13,448.16-18,552.60-8,403.60

Finding the Fourth Proportional to 13,448.16, 18,552.60 and 8,403.60

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Solution

The fourth proportional to 13,448.16, 18,552.60 and 8,403.60 is: 11,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.16 : 18,552.60 = 8,403.60 : x
  2. Step 2: Convert to fraction form
    13,448.16/18,552.60 = 8,403.60/x
  3. Step 3: Cross multiply
    13,448.16x = 18,552.60 × 8,403.60
  4. Step 4: Simplify right side
    13,448.16x = 155,908,629.36
  5. Step 5: Solve for x
    x = 155,908,629.36/13,448.16
  6. Step 6: Final answer
    x = 11,593.31

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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.