Home / 13,657.36-20,481.08-4,770.20

Finding the Fourth Proportional to 13,657.36, 20,481.08 and 4,770.20

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Solution

The fourth proportional to 13,657.36, 20,481.08 and 4,770.20 is: 7,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.36 : 20,481.08 = 4,770.20 : x
  2. Step 2: Convert to fraction form
    13,657.36/20,481.08 = 4,770.20/x
  3. Step 3: Cross multiply
    13,657.36x = 20,481.08 × 4,770.20
  4. Step 4: Simplify right side
    13,657.36x = 97,698,888.58
  5. Step 5: Solve for x
    x = 97,698,888.58/13,657.36
  6. Step 6: Final answer
    x = 7,153.57

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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.