Home / 14,011.56-21,015.36-4,148.28

Finding the Fourth Proportional to 14,011.56, 21,015.36 and 4,148.28

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Solution

The fourth proportional to 14,011.56, 21,015.36 and 4,148.28 is: 6,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.56 : 21,015.36 = 4,148.28 : x
  2. Step 2: Convert to fraction form
    14,011.56/21,015.36 = 4,148.28/x
  3. Step 3: Cross multiply
    14,011.56x = 21,015.36 × 4,148.28
  4. Step 4: Simplify right side
    14,011.56x = 87,177,597.58
  5. Step 5: Solve for x
    x = 87,177,597.58/14,011.56
  6. Step 6: Final answer
    x = 6,221.83

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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.