Home / 13,485.09-20,224.39-6,907.89

Finding the Fourth Proportional to 13,485.09, 20,224.39 and 6,907.89

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Solution

The fourth proportional to 13,485.09, 20,224.39 and 6,907.89 is: 10,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.09 : 20,224.39 = 6,907.89 : x
  2. Step 2: Convert to fraction form
    13,485.09/20,224.39 = 6,907.89/x
  3. Step 3: Cross multiply
    13,485.09x = 20,224.39 × 6,907.89
  4. Step 4: Simplify right side
    13,485.09x = 139,707,810.88
  5. Step 5: Solve for x
    x = 139,707,810.88/13,485.09
  6. Step 6: Final answer
    x = 10,360.17

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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.