Home / 9,999.36-13,800.27-8,317.80

Finding the Fourth Proportional to 9,999.36, 13,800.27 and 8,317.80

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Solution

The fourth proportional to 9,999.36, 13,800.27 and 8,317.80 is: 11,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.36 : 13,800.27 = 8,317.80 : x
  2. Step 2: Convert to fraction form
    9,999.36/13,800.27 = 8,317.80/x
  3. Step 3: Cross multiply
    9,999.36x = 13,800.27 × 8,317.80
  4. Step 4: Simplify right side
    9,999.36x = 114,787,885.81
  5. Step 5: Solve for x
    x = 114,787,885.81/9,999.36
  6. Step 6: Final answer
    x = 11,479.52

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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.