Home / 13,757.03-18,984.70-7,469.40

Finding the Fourth Proportional to 13,757.03, 18,984.70 and 7,469.40

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Solution

The fourth proportional to 13,757.03, 18,984.70 and 7,469.40 is: 10,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.03 : 18,984.70 = 7,469.40 : x
  2. Step 2: Convert to fraction form
    13,757.03/18,984.70 = 7,469.40/x
  3. Step 3: Cross multiply
    13,757.03x = 18,984.70 × 7,469.40
  4. Step 4: Simplify right side
    13,757.03x = 141,804,345.75
  5. Step 5: Solve for x
    x = 141,804,345.75/13,757.03
  6. Step 6: Final answer
    x = 10,307.78

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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.