Home / 14,012.60-21,019.98-4,151.72

Finding the Fourth Proportional to 14,012.60, 21,019.98 and 4,151.72

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Solution

The fourth proportional to 14,012.60, 21,019.98 and 4,151.72 is: 6,227.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.60 : 21,019.98 = 4,151.72 : x
  2. Step 2: Convert to fraction form
    14,012.60/21,019.98 = 4,151.72/x
  3. Step 3: Cross multiply
    14,012.60x = 21,019.98 × 4,151.72
  4. Step 4: Simplify right side
    14,012.60x = 87,269,071.37
  5. Step 5: Solve for x
    x = 87,269,071.37/14,012.60
  6. Step 6: Final answer
    x = 6,227.90

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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.