Home / 13,698.12-20,548.09-4,812.37

Finding the Fourth Proportional to 13,698.12, 20,548.09 and 4,812.37

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Solution

The fourth proportional to 13,698.12, 20,548.09 and 4,812.37 is: 7,218.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.12 : 20,548.09 = 4,812.37 : x
  2. Step 2: Convert to fraction form
    13,698.12/20,548.09 = 4,812.37/x
  3. Step 3: Cross multiply
    13,698.12x = 20,548.09 × 4,812.37
  4. Step 4: Simplify right side
    13,698.12x = 98,885,011.87
  5. Step 5: Solve for x
    x = 98,885,011.87/13,698.12
  6. Step 6: Final answer
    x = 7,218.87

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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.