Home / 14,125.28-21,173.34-6,724.40

Finding the Fourth Proportional to 14,125.28, 21,173.34 and 6,724.40

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Solution

The fourth proportional to 14,125.28, 21,173.34 and 6,724.40 is: 10,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.28 : 21,173.34 = 6,724.40 : x
  2. Step 2: Convert to fraction form
    14,125.28/21,173.34 = 6,724.40/x
  3. Step 3: Cross multiply
    14,125.28x = 21,173.34 × 6,724.40
  4. Step 4: Simplify right side
    14,125.28x = 142,378,007.50
  5. Step 5: Solve for x
    x = 142,378,007.50/14,125.28
  6. Step 6: Final answer
    x = 10,079.66

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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.