Home / 13,485.66-20,209.05-7,630.17

Finding the Fourth Proportional to 13,485.66, 20,209.05 and 7,630.17

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Solution

The fourth proportional to 13,485.66, 20,209.05 and 7,630.17 is: 11,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.66 : 20,209.05 = 7,630.17 : x
  2. Step 2: Convert to fraction form
    13,485.66/20,209.05 = 7,630.17/x
  3. Step 3: Cross multiply
    13,485.66x = 20,209.05 × 7,630.17
  4. Step 4: Simplify right side
    13,485.66x = 154,198,487.04
  5. Step 5: Solve for x
    x = 154,198,487.04/13,485.66
  6. Step 6: Final answer
    x = 11,434.26

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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.