Home / 13,314.89-18,374.60-7,346.55

Finding the Fourth Proportional to 13,314.89, 18,374.60 and 7,346.55

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Solution

The fourth proportional to 13,314.89, 18,374.60 and 7,346.55 is: 10,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.89 : 18,374.60 = 7,346.55 : x
  2. Step 2: Convert to fraction form
    13,314.89/18,374.60 = 7,346.55/x
  3. Step 3: Cross multiply
    13,314.89x = 18,374.60 × 7,346.55
  4. Step 4: Simplify right side
    13,314.89x = 134,989,917.63
  5. Step 5: Solve for x
    x = 134,989,917.63/13,314.89
  6. Step 6: Final answer
    x = 10,138.27

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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.