Home / 14,106.72-21,159.90-4,245.60

Finding the Fourth Proportional to 14,106.72, 21,159.90 and 4,245.60

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Solution

The fourth proportional to 14,106.72, 21,159.90 and 4,245.60 is: 6,368.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.72 : 21,159.90 = 4,245.60 : x
  2. Step 2: Convert to fraction form
    14,106.72/21,159.90 = 4,245.60/x
  3. Step 3: Cross multiply
    14,106.72x = 21,159.90 × 4,245.60
  4. Step 4: Simplify right side
    14,106.72x = 89,836,471.44
  5. Step 5: Solve for x
    x = 89,836,471.44/14,106.72
  6. Step 6: Final answer
    x = 6,368.35

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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.