Home / 7,905.66-10,914.90-5,074.26

Finding the Fourth Proportional to 7,905.66, 10,914.90 and 5,074.26

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Solution

The fourth proportional to 7,905.66, 10,914.90 and 5,074.26 is: 7,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.66 : 10,914.90 = 5,074.26 : x
  2. Step 2: Convert to fraction form
    7,905.66/10,914.90 = 5,074.26/x
  3. Step 3: Cross multiply
    7,905.66x = 10,914.90 × 5,074.26
  4. Step 4: Simplify right side
    7,905.66x = 55,385,040.47
  5. Step 5: Solve for x
    x = 55,385,040.47/7,905.66
  6. Step 6: Final answer
    x = 7,005.75

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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.