Home / 14,021.52-21,019.92-5,250.28

Finding the Fourth Proportional to 14,021.52, 21,019.92 and 5,250.28

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Solution

The fourth proportional to 14,021.52, 21,019.92 and 5,250.28 is: 7,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.52 : 21,019.92 = 5,250.28 : x
  2. Step 2: Convert to fraction form
    14,021.52/21,019.92 = 5,250.28/x
  3. Step 3: Cross multiply
    14,021.52x = 21,019.92 × 5,250.28
  4. Step 4: Simplify right side
    14,021.52x = 110,360,465.58
  5. Step 5: Solve for x
    x = 110,360,465.58/14,021.52
  6. Step 6: Final answer
    x = 7,870.79

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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.