Home / 13,445.42-20,135.25-11,608.34

Finding the Fourth Proportional to 13,445.42, 20,135.25 and 11,608.34

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Solution

The fourth proportional to 13,445.42, 20,135.25 and 11,608.34 is: 17,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.42 : 20,135.25 = 11,608.34 : x
  2. Step 2: Convert to fraction form
    13,445.42/20,135.25 = 11,608.34/x
  3. Step 3: Cross multiply
    13,445.42x = 20,135.25 × 11,608.34
  4. Step 4: Simplify right side
    13,445.42x = 233,736,827.99
  5. Step 5: Solve for x
    x = 233,736,827.99/13,445.42
  6. Step 6: Final answer
    x = 17,384.12

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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.