Home / 13,630.08-20,445.12-4,396.08

Finding the Fourth Proportional to 13,630.08, 20,445.12 and 4,396.08

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Solution

The fourth proportional to 13,630.08, 20,445.12 and 4,396.08 is: 6,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.08 : 20,445.12 = 4,396.08 : x
  2. Step 2: Convert to fraction form
    13,630.08/20,445.12 = 4,396.08/x
  3. Step 3: Cross multiply
    13,630.08x = 20,445.12 × 4,396.08
  4. Step 4: Simplify right side
    13,630.08x = 89,878,383.13
  5. Step 5: Solve for x
    x = 89,878,383.13/13,630.08
  6. Step 6: Final answer
    x = 6,594.12

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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.