Home / 13,971.60-20,948.76-4,738.32

Finding the Fourth Proportional to 13,971.60, 20,948.76 and 4,738.32

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Solution

The fourth proportional to 13,971.60, 20,948.76 and 4,738.32 is: 7,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.60 : 20,948.76 = 4,738.32 : x
  2. Step 2: Convert to fraction form
    13,971.60/20,948.76 = 4,738.32/x
  3. Step 3: Cross multiply
    13,971.60x = 20,948.76 × 4,738.32
  4. Step 4: Simplify right side
    13,971.60x = 99,261,928.48
  5. Step 5: Solve for x
    x = 99,261,928.48/13,971.60
  6. Step 6: Final answer
    x = 7,104.55

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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.