Home / 9,969.36-13,746.48-6,379.62

Finding the Fourth Proportional to 9,969.36, 13,746.48 and 6,379.62

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Solution

The fourth proportional to 9,969.36, 13,746.48 and 6,379.62 is: 8,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969.36 : 13,746.48 = 6,379.62 : x
  2. Step 2: Convert to fraction form
    9,969.36/13,746.48 = 6,379.62/x
  3. Step 3: Cross multiply
    9,969.36x = 13,746.48 × 6,379.62
  4. Step 4: Simplify right side
    9,969.36x = 87,697,318.74
  5. Step 5: Solve for x
    x = 87,697,318.74/9,969.36
  6. Step 6: Final answer
    x = 8,796.68

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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.