Home / 14,107.36-21,150.24-6,987.28

Finding the Fourth Proportional to 14,107.36, 21,150.24 and 6,987.28

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Solution

The fourth proportional to 14,107.36, 21,150.24 and 6,987.28 is: 10,475.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.36 : 21,150.24 = 6,987.28 : x
  2. Step 2: Convert to fraction form
    14,107.36/21,150.24 = 6,987.28/x
  3. Step 3: Cross multiply
    14,107.36x = 21,150.24 × 6,987.28
  4. Step 4: Simplify right side
    14,107.36x = 147,782,648.95
  5. Step 5: Solve for x
    x = 147,782,648.95/14,107.36
  6. Step 6: Final answer
    x = 10,475.57

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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.