Home / 9,701.28-13,379.58-8,212.50

Finding the Fourth Proportional to 9,701.28, 13,379.58 and 8,212.50

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Solution

The fourth proportional to 9,701.28, 13,379.58 and 8,212.50 is: 11,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.28 : 13,379.58 = 8,212.50 : x
  2. Step 2: Convert to fraction form
    9,701.28/13,379.58 = 8,212.50/x
  3. Step 3: Cross multiply
    9,701.28x = 13,379.58 × 8,212.50
  4. Step 4: Simplify right side
    9,701.28x = 109,879,800.75
  5. Step 5: Solve for x
    x = 109,879,800.75/9,701.28
  6. Step 6: Final answer
    x = 11,326.32

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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.