Home / 13,887.54-20,810.43-5,559.30

Finding the Fourth Proportional to 13,887.54, 20,810.43 and 5,559.30

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Solution

The fourth proportional to 13,887.54, 20,810.43 and 5,559.30 is: 8,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.54 : 20,810.43 = 5,559.30 : x
  2. Step 2: Convert to fraction form
    13,887.54/20,810.43 = 5,559.30/x
  3. Step 3: Cross multiply
    13,887.54x = 20,810.43 × 5,559.30
  4. Step 4: Simplify right side
    13,887.54x = 115,691,423.50
  5. Step 5: Solve for x
    x = 115,691,423.50/13,887.54
  6. Step 6: Final answer
    x = 8,330.59

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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.