Home / 13,055.60-18,021.14-9,076.88

Finding the Fourth Proportional to 13,055.60, 18,021.14 and 9,076.88

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Solution

The fourth proportional to 13,055.60, 18,021.14 and 9,076.88 is: 12,529.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.60 : 18,021.14 = 9,076.88 : x
  2. Step 2: Convert to fraction form
    13,055.60/18,021.14 = 9,076.88/x
  3. Step 3: Cross multiply
    13,055.60x = 18,021.14 × 9,076.88
  4. Step 4: Simplify right side
    13,055.60x = 163,575,589.75
  5. Step 5: Solve for x
    x = 163,575,589.75/13,055.60
  6. Step 6: Final answer
    x = 12,529.16

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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.