Home / 13,809.52-20,706.09-5,485.06

Finding the Fourth Proportional to 13,809.52, 20,706.09 and 5,485.06

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Solution

The fourth proportional to 13,809.52, 20,706.09 and 5,485.06 is: 8,224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.52 : 20,706.09 = 5,485.06 : x
  2. Step 2: Convert to fraction form
    13,809.52/20,706.09 = 5,485.06/x
  3. Step 3: Cross multiply
    13,809.52x = 20,706.09 × 5,485.06
  4. Step 4: Simplify right side
    13,809.52x = 113,574,146.02
  5. Step 5: Solve for x
    x = 113,574,146.02/13,809.52
  6. Step 6: Final answer
    x = 8,224.34

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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.