Home / 14,226.16-21,341.40-4,990

Finding the Fourth Proportional to 14,226.16, 21,341.40 and 4,990

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Solution

The fourth proportional to 14,226.16, 21,341.40 and 4,990 is: 7,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,226.16 : 21,341.40 = 4,990 : x
  2. Step 2: Convert to fraction form
    14,226.16/21,341.40 = 4,990/x
  3. Step 3: Cross multiply
    14,226.16x = 21,341.40 × 4,990
  4. Step 4: Simplify right side
    14,226.16x = 106,493,586
  5. Step 5: Solve for x
    x = 106,493,586/14,226.16
  6. Step 6: Final answer
    x = 7,485.76

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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.