Home / 13,622.76-20,430.09-5,304.06

Finding the Fourth Proportional to 13,622.76, 20,430.09 and 5,304.06

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Solution

The fourth proportional to 13,622.76, 20,430.09 and 5,304.06 is: 7,954.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.76 : 20,430.09 = 5,304.06 : x
  2. Step 2: Convert to fraction form
    13,622.76/20,430.09 = 5,304.06/x
  3. Step 3: Cross multiply
    13,622.76x = 20,430.09 × 5,304.06
  4. Step 4: Simplify right side
    13,622.76x = 108,362,423.17
  5. Step 5: Solve for x
    x = 108,362,423.17/13,622.76
  6. Step 6: Final answer
    x = 7,954.51

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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.