Home / 7,039.21-9,705.30-5,149.27

Finding the Fourth Proportional to 7,039.21, 9,705.30 and 5,149.27

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Solution

The fourth proportional to 7,039.21, 9,705.30 and 5,149.27 is: 7,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.21 : 9,705.30 = 5,149.27 : x
  2. Step 2: Convert to fraction form
    7,039.21/9,705.30 = 5,149.27/x
  3. Step 3: Cross multiply
    7,039.21x = 9,705.30 × 5,149.27
  4. Step 4: Simplify right side
    7,039.21x = 49,975,210.13
  5. Step 5: Solve for x
    x = 49,975,210.13/7,039.21
  6. Step 6: Final answer
    x = 7,099.55

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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.