Home / 14,215.56-21,323.34-4,979.40

Finding the Fourth Proportional to 14,215.56, 21,323.34 and 4,979.40

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Solution

The fourth proportional to 14,215.56, 21,323.34 and 4,979.40 is: 7,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.56 : 21,323.34 = 4,979.40 : x
  2. Step 2: Convert to fraction form
    14,215.56/21,323.34 = 4,979.40/x
  3. Step 3: Cross multiply
    14,215.56x = 21,323.34 × 4,979.40
  4. Step 4: Simplify right side
    14,215.56x = 106,177,439.20
  5. Step 5: Solve for x
    x = 106,177,439.20/14,215.56
  6. Step 6: Final answer
    x = 7,469.10

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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.