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Finding the Fourth Proportional to 6,470.81, 8,926.21 and 5,345.09

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Solution

The fourth proportional to 6,470.81, 8,926.21 and 5,345.09 is: 7,373.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.81 : 8,926.21 = 5,345.09 : x
  2. Step 2: Convert to fraction form
    6,470.81/8,926.21 = 5,345.09/x
  3. Step 3: Cross multiply
    6,470.81x = 8,926.21 × 5,345.09
  4. Step 4: Simplify right side
    6,470.81x = 47,711,395.81
  5. Step 5: Solve for x
    x = 47,711,395.81/6,470.81
  6. Step 6: Final answer
    x = 7,373.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.