Home / 13,208.54-18,227.30-7,903.04

Finding the Fourth Proportional to 13,208.54, 18,227.30 and 7,903.04

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Solution

The fourth proportional to 13,208.54, 18,227.30 and 7,903.04 is: 10,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.54 : 18,227.30 = 7,903.04 : x
  2. Step 2: Convert to fraction form
    13,208.54/18,227.30 = 7,903.04/x
  3. Step 3: Cross multiply
    13,208.54x = 18,227.30 × 7,903.04
  4. Step 4: Simplify right side
    13,208.54x = 144,051,080.99
  5. Step 5: Solve for x
    x = 144,051,080.99/13,208.54
  6. Step 6: Final answer
    x = 10,905.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.