Home / 13,509.36-20,300.63-7,273.89

Finding the Fourth Proportional to 13,509.36, 20,300.63 and 7,273.89

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Solution

The fourth proportional to 13,509.36, 20,300.63 and 7,273.89 is: 10,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.36 : 20,300.63 = 7,273.89 : x
  2. Step 2: Convert to fraction form
    13,509.36/20,300.63 = 7,273.89/x
  3. Step 3: Cross multiply
    13,509.36x = 20,300.63 × 7,273.89
  4. Step 4: Simplify right side
    13,509.36x = 147,664,513.18
  5. Step 5: Solve for x
    x = 147,664,513.18/13,509.36
  6. Step 6: Final answer
    x = 10,930.53

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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.