Home / 13,719.96-18,933.60-7,432.34

Finding the Fourth Proportional to 13,719.96, 18,933.60 and 7,432.34

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Solution

The fourth proportional to 13,719.96, 18,933.60 and 7,432.34 is: 10,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.96 : 18,933.60 = 7,432.34 : x
  2. Step 2: Convert to fraction form
    13,719.96/18,933.60 = 7,432.34/x
  3. Step 3: Cross multiply
    13,719.96x = 18,933.60 × 7,432.34
  4. Step 4: Simplify right side
    13,719.96x = 140,720,857.96
  5. Step 5: Solve for x
    x = 140,720,857.96/13,719.96
  6. Step 6: Final answer
    x = 10,256.65

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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.