Home / 13,656.56-20,485.74-4,296.94

Finding the Fourth Proportional to 13,656.56, 20,485.74 and 4,296.94

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Solution

The fourth proportional to 13,656.56, 20,485.74 and 4,296.94 is: 6,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.56 : 20,485.74 = 4,296.94 : x
  2. Step 2: Convert to fraction form
    13,656.56/20,485.74 = 4,296.94/x
  3. Step 3: Cross multiply
    13,656.56x = 20,485.74 × 4,296.94
  4. Step 4: Simplify right side
    13,656.56x = 88,025,895.47
  5. Step 5: Solve for x
    x = 88,025,895.47/13,656.56
  6. Step 6: Final answer
    x = 6,445.68

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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.