Home / 13,898.07-20,847.09-3,509.82

Finding the Fourth Proportional to 13,898.07, 20,847.09 and 3,509.82

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Solution

The fourth proportional to 13,898.07, 20,847.09 and 3,509.82 is: 5,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.07 : 20,847.09 = 3,509.82 : x
  2. Step 2: Convert to fraction form
    13,898.07/20,847.09 = 3,509.82/x
  3. Step 3: Cross multiply
    13,898.07x = 20,847.09 × 3,509.82
  4. Step 4: Simplify right side
    13,898.07x = 73,169,533.42
  5. Step 5: Solve for x
    x = 73,169,533.42/13,898.07
  6. Step 6: Final answer
    x = 5,264.73

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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.