Home / 7,913.99-10,918.23-5,080.61

Finding the Fourth Proportional to 7,913.99, 10,918.23 and 5,080.61

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Solution

The fourth proportional to 7,913.99, 10,918.23 and 5,080.61 is: 7,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.99 : 10,918.23 = 5,080.61 : x
  2. Step 2: Convert to fraction form
    7,913.99/10,918.23 = 5,080.61/x
  3. Step 3: Cross multiply
    7,913.99x = 10,918.23 × 5,080.61
  4. Step 4: Simplify right side
    7,913.99x = 55,471,213.93
  5. Step 5: Solve for x
    x = 55,471,213.93/7,913.99
  6. Step 6: Final answer
    x = 7,009.26

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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.