Home / 13,505.89-20,260.86-4,739.26

Finding the Fourth Proportional to 13,505.89, 20,260.86 and 4,739.26

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Solution

The fourth proportional to 13,505.89, 20,260.86 and 4,739.26 is: 7,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.89 : 20,260.86 = 4,739.26 : x
  2. Step 2: Convert to fraction form
    13,505.89/20,260.86 = 4,739.26/x
  3. Step 3: Cross multiply
    13,505.89x = 20,260.86 × 4,739.26
  4. Step 4: Simplify right side
    13,505.89x = 96,021,483.36
  5. Step 5: Solve for x
    x = 96,021,483.36/13,505.89
  6. Step 6: Final answer
    x = 7,109.60

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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.