Home / 9,191.25-12,683.94-4,999.50

Finding the Fourth Proportional to 9,191.25, 12,683.94 and 4,999.50

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Solution

The fourth proportional to 9,191.25, 12,683.94 and 4,999.50 is: 6,899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.25 : 12,683.94 = 4,999.50 : x
  2. Step 2: Convert to fraction form
    9,191.25/12,683.94 = 4,999.50/x
  3. Step 3: Cross multiply
    9,191.25x = 12,683.94 × 4,999.50
  4. Step 4: Simplify right side
    9,191.25x = 63,413,358.03
  5. Step 5: Solve for x
    x = 63,413,358.03/9,191.25
  6. Step 6: Final answer
    x = 6,899.32

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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.