Home / 13,317.70-18,374.14-8,842.32

Finding the Fourth Proportional to 13,317.70, 18,374.14 and 8,842.32

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Solution

The fourth proportional to 13,317.70, 18,374.14 and 8,842.32 is: 12,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.70 : 18,374.14 = 8,842.32 : x
  2. Step 2: Convert to fraction form
    13,317.70/18,374.14 = 8,842.32/x
  3. Step 3: Cross multiply
    13,317.70x = 18,374.14 × 8,842.32
  4. Step 4: Simplify right side
    13,317.70x = 162,470,025.60
  5. Step 5: Solve for x
    x = 162,470,025.60/13,317.70
  6. Step 6: Final answer
    x = 12,199.56

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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.