Home / 13,630.32-20,445.34-4,745.63

Finding the Fourth Proportional to 13,630.32, 20,445.34 and 4,745.63

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Solution

The fourth proportional to 13,630.32, 20,445.34 and 4,745.63 is: 7,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.32 : 20,445.34 = 4,745.63 : x
  2. Step 2: Convert to fraction form
    13,630.32/20,445.34 = 4,745.63/x
  3. Step 3: Cross multiply
    13,630.32x = 20,445.34 × 4,745.63
  4. Step 4: Simplify right side
    13,630.32x = 97,025,996.16
  5. Step 5: Solve for x
    x = 97,025,996.16/13,630.32
  6. Step 6: Final answer
    x = 7,118.40

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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.