Home / 14,109.80-21,165.74-4,749.77

Finding the Fourth Proportional to 14,109.80, 21,165.74 and 4,749.77

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Solution

The fourth proportional to 14,109.80, 21,165.74 and 4,749.77 is: 7,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.80 : 21,165.74 = 4,749.77 : x
  2. Step 2: Convert to fraction form
    14,109.80/21,165.74 = 4,749.77/x
  3. Step 3: Cross multiply
    14,109.80x = 21,165.74 × 4,749.77
  4. Step 4: Simplify right side
    14,109.80x = 100,532,443.86
  5. Step 5: Solve for x
    x = 100,532,443.86/14,109.80
  6. Step 6: Final answer
    x = 7,125.01

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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.