Home / 13,509.56-20,264.43-8,858.99

Finding the Fourth Proportional to 13,509.56, 20,264.43 and 8,858.99

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Solution

The fourth proportional to 13,509.56, 20,264.43 and 8,858.99 is: 13,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.56 : 20,264.43 = 8,858.99 : x
  2. Step 2: Convert to fraction form
    13,509.56/20,264.43 = 8,858.99/x
  3. Step 3: Cross multiply
    13,509.56x = 20,264.43 × 8,858.99
  4. Step 4: Simplify right side
    13,509.56x = 179,522,281.40
  5. Step 5: Solve for x
    x = 179,522,281.40/13,509.56
  6. Step 6: Final answer
    x = 13,288.54

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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.