Home / 14,106.56-21,159.92-4,245.78

Finding the Fourth Proportional to 14,106.56, 21,159.92 and 4,245.78

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Solution

The fourth proportional to 14,106.56, 21,159.92 and 4,245.78 is: 6,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.56 : 21,159.92 = 4,245.78 : x
  2. Step 2: Convert to fraction form
    14,106.56/21,159.92 = 4,245.78/x
  3. Step 3: Cross multiply
    14,106.56x = 21,159.92 × 4,245.78
  4. Step 4: Simplify right side
    14,106.56x = 89,840,365.14
  5. Step 5: Solve for x
    x = 89,840,365.14/14,106.56
  6. Step 6: Final answer
    x = 6,368.69

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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.