Home / 13,851.58-19,119.27-9,661.18

Finding the Fourth Proportional to 13,851.58, 19,119.27 and 9,661.18

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Solution

The fourth proportional to 13,851.58, 19,119.27 and 9,661.18 is: 13,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.58 : 19,119.27 = 9,661.18 : x
  2. Step 2: Convert to fraction form
    13,851.58/19,119.27 = 9,661.18/x
  3. Step 3: Cross multiply
    13,851.58x = 19,119.27 × 9,661.18
  4. Step 4: Simplify right side
    13,851.58x = 184,714,708.94
  5. Step 5: Solve for x
    x = 184,714,708.94/13,851.58
  6. Step 6: Final answer
    x = 13,335.28

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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.