Home / 13,887.61-20,835.60-6,496.36

Finding the Fourth Proportional to 13,887.61, 20,835.60 and 6,496.36

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Solution

The fourth proportional to 13,887.61, 20,835.60 and 6,496.36 is: 9,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.61 : 20,835.60 = 6,496.36 : x
  2. Step 2: Convert to fraction form
    13,887.61/20,835.60 = 6,496.36/x
  3. Step 3: Cross multiply
    13,887.61x = 20,835.60 × 6,496.36
  4. Step 4: Simplify right side
    13,887.61x = 135,355,558.42
  5. Step 5: Solve for x
    x = 135,355,558.42/13,887.61
  6. Step 6: Final answer
    x = 9,746.50

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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.