Home / 13,080.33-18,052.61-8,378.28

Finding the Fourth Proportional to 13,080.33, 18,052.61 and 8,378.28

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Solution

The fourth proportional to 13,080.33, 18,052.61 and 8,378.28 is: 11,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.33 : 18,052.61 = 8,378.28 : x
  2. Step 2: Convert to fraction form
    13,080.33/18,052.61 = 8,378.28/x
  3. Step 3: Cross multiply
    13,080.33x = 18,052.61 × 8,378.28
  4. Step 4: Simplify right side
    13,080.33x = 151,249,779.42
  5. Step 5: Solve for x
    x = 151,249,779.42/13,080.33
  6. Step 6: Final answer
    x = 11,563.15

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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.