Home / 13,480.20-18,610.47-10,268.28

Finding the Fourth Proportional to 13,480.20, 18,610.47 and 10,268.28

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Solution

The fourth proportional to 13,480.20, 18,610.47 and 10,268.28 is: 14,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.20 : 18,610.47 = 10,268.28 : x
  2. Step 2: Convert to fraction form
    13,480.20/18,610.47 = 10,268.28/x
  3. Step 3: Cross multiply
    13,480.20x = 18,610.47 × 10,268.28
  4. Step 4: Simplify right side
    13,480.20x = 191,097,516.89
  5. Step 5: Solve for x
    x = 191,097,516.89/13,480.20
  6. Step 6: Final answer
    x = 14,176.16

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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.