Home / 13,080.51-18,050.92-7,112.23

Finding the Fourth Proportional to 13,080.51, 18,050.92 and 7,112.23

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Solution

The fourth proportional to 13,080.51, 18,050.92 and 7,112.23 is: 9,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.51 : 18,050.92 = 7,112.23 : x
  2. Step 2: Convert to fraction form
    13,080.51/18,050.92 = 7,112.23/x
  3. Step 3: Cross multiply
    13,080.51x = 18,050.92 × 7,112.23
  4. Step 4: Simplify right side
    13,080.51x = 128,382,231.84
  5. Step 5: Solve for x
    x = 128,382,231.84/13,080.51
  6. Step 6: Final answer
    x = 9,814.77

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Double scale
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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.