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Finding the Fourth Proportional to 7,019.54, 10,480.43 and 6,319.70

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Solution

The fourth proportional to 7,019.54, 10,480.43 and 6,319.70 is: 9,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.54 : 10,480.43 = 6,319.70 : x
  2. Step 2: Convert to fraction form
    7,019.54/10,480.43 = 6,319.70/x
  3. Step 3: Cross multiply
    7,019.54x = 10,480.43 × 6,319.70
  4. Step 4: Simplify right side
    7,019.54x = 66,233,089.47
  5. Step 5: Solve for x
    x = 66,233,089.47/7,019.54
  6. Step 6: Final answer
    x = 9,435.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.