Home / 14,072.60-21,105.76-4,210.60

Finding the Fourth Proportional to 14,072.60, 21,105.76 and 4,210.60

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Solution

The fourth proportional to 14,072.60, 21,105.76 and 4,210.60 is: 6,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.60 : 21,105.76 = 4,210.60 : x
  2. Step 2: Convert to fraction form
    14,072.60/21,105.76 = 4,210.60/x
  3. Step 3: Cross multiply
    14,072.60x = 21,105.76 × 4,210.60
  4. Step 4: Simplify right side
    14,072.60x = 88,867,913.06
  5. Step 5: Solve for x
    x = 88,867,913.06/14,072.60
  6. Step 6: Final answer
    x = 6,314.96

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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.