Home / 9,928.79-13,698.31-6,345.85

Finding the Fourth Proportional to 9,928.79, 13,698.31 and 6,345.85

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Solution

The fourth proportional to 9,928.79, 13,698.31 and 6,345.85 is: 8,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,928.79 : 13,698.31 = 6,345.85 : x
  2. Step 2: Convert to fraction form
    9,928.79/13,698.31 = 6,345.85/x
  3. Step 3: Cross multiply
    9,928.79x = 13,698.31 × 6,345.85
  4. Step 4: Simplify right side
    9,928.79x = 86,927,379.44
  5. Step 5: Solve for x
    x = 86,927,379.44/9,928.79
  6. Step 6: Final answer
    x = 8,755.08

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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.