Home / 13,289.57-19,931.61-5,889.31

Finding the Fourth Proportional to 13,289.57, 19,931.61 and 5,889.31

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Solution

The fourth proportional to 13,289.57, 19,931.61 and 5,889.31 is: 8,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.57 : 19,931.61 = 5,889.31 : x
  2. Step 2: Convert to fraction form
    13,289.57/19,931.61 = 5,889.31/x
  3. Step 3: Cross multiply
    13,289.57x = 19,931.61 × 5,889.31
  4. Step 4: Simplify right side
    13,289.57x = 117,383,380.26
  5. Step 5: Solve for x
    x = 117,383,380.26/13,289.57
  6. Step 6: Final answer
    x = 8,832.75

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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.