Home / 14,109.36-21,161.75-5,228.88

Finding the Fourth Proportional to 14,109.36, 21,161.75 and 5,228.88

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Solution

The fourth proportional to 14,109.36, 21,161.75 and 5,228.88 is: 7,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.36 : 21,161.75 = 5,228.88 : x
  2. Step 2: Convert to fraction form
    14,109.36/21,161.75 = 5,228.88/x
  3. Step 3: Cross multiply
    14,109.36x = 21,161.75 × 5,228.88
  4. Step 4: Simplify right side
    14,109.36x = 110,652,225.20
  5. Step 5: Solve for x
    x = 110,652,225.20/14,109.36
  6. Step 6: Final answer
    x = 7,842.47

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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.