Home / 13,432.96-20,128.92-5,637.52

Finding the Fourth Proportional to 13,432.96, 20,128.92 and 5,637.52

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Solution

The fourth proportional to 13,432.96, 20,128.92 and 5,637.52 is: 8,447.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.96 : 20,128.92 = 5,637.52 : x
  2. Step 2: Convert to fraction form
    13,432.96/20,128.92 = 5,637.52/x
  3. Step 3: Cross multiply
    13,432.96x = 20,128.92 × 5,637.52
  4. Step 4: Simplify right side
    13,432.96x = 113,477,189.08
  5. Step 5: Solve for x
    x = 113,477,189.08/13,432.96
  6. Step 6: Final answer
    x = 8,447.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.