Home / 13,768.02-18,999.36-7,480.26

Finding the Fourth Proportional to 13,768.02, 18,999.36 and 7,480.26

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Solution

The fourth proportional to 13,768.02, 18,999.36 and 7,480.26 is: 10,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.02 : 18,999.36 = 7,480.26 : x
  2. Step 2: Convert to fraction form
    13,768.02/18,999.36 = 7,480.26/x
  3. Step 3: Cross multiply
    13,768.02x = 18,999.36 × 7,480.26
  4. Step 4: Simplify right side
    13,768.02x = 142,120,152.63
  5. Step 5: Solve for x
    x = 142,120,152.63/13,768.02
  6. Step 6: Final answer
    x = 10,322.48

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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.