Home / 13,664.45-20,499.02-6,269.55

Finding the Fourth Proportional to 13,664.45, 20,499.02 and 6,269.55

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Solution

The fourth proportional to 13,664.45, 20,499.02 and 6,269.55 is: 9,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.45 : 20,499.02 = 6,269.55 : x
  2. Step 2: Convert to fraction form
    13,664.45/20,499.02 = 6,269.55/x
  3. Step 3: Cross multiply
    13,664.45x = 20,499.02 × 6,269.55
  4. Step 4: Simplify right side
    13,664.45x = 128,519,630.84
  5. Step 5: Solve for x
    x = 128,519,630.84/13,664.45
  6. Step 6: Final answer
    x = 9,405.40

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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.