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Finding the Fourth Proportional to 14,009.85, 21,007.91 and 4,646.72

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Solution

The fourth proportional to 14,009.85, 21,007.91 and 4,646.72 is: 6,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.85 : 21,007.91 = 4,646.72 : x
  2. Step 2: Convert to fraction form
    14,009.85/21,007.91 = 4,646.72/x
  3. Step 3: Cross multiply
    14,009.85x = 21,007.91 × 4,646.72
  4. Step 4: Simplify right side
    14,009.85x = 97,617,747.28
  5. Step 5: Solve for x
    x = 97,617,747.28/14,009.85
  6. Step 6: Final answer
    x = 6,967.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.