Home / 13,101.59-18,080.20-7,133.26

Finding the Fourth Proportional to 13,101.59, 18,080.20 and 7,133.26

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Solution

The fourth proportional to 13,101.59, 18,080.20 and 7,133.26 is: 9,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.59 : 18,080.20 = 7,133.26 : x
  2. Step 2: Convert to fraction form
    13,101.59/18,080.20 = 7,133.26/x
  3. Step 3: Cross multiply
    13,101.59x = 18,080.20 × 7,133.26
  4. Step 4: Simplify right side
    13,101.59x = 128,970,686.59
  5. Step 5: Solve for x
    x = 128,970,686.59/13,101.59
  6. Step 6: Final answer
    x = 9,843.90

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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.