Home / 13,080.08-18,050.41-7,111.75

Finding the Fourth Proportional to 13,080.08, 18,050.41 and 7,111.75

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Solution

The fourth proportional to 13,080.08, 18,050.41 and 7,111.75 is: 9,814.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.08 : 18,050.41 = 7,111.75 : x
  2. Step 2: Convert to fraction form
    13,080.08/18,050.41 = 7,111.75/x
  3. Step 3: Cross multiply
    13,080.08x = 18,050.41 × 7,111.75
  4. Step 4: Simplify right side
    13,080.08x = 128,370,020.93
  5. Step 5: Solve for x
    x = 128,370,020.93/13,080.08
  6. Step 6: Final answer
    x = 9,814.16

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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.