Home / 14,054.30-21,069.21-5,286.86

Finding the Fourth Proportional to 14,054.30, 21,069.21 and 5,286.86

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Solution

The fourth proportional to 14,054.30, 21,069.21 and 5,286.86 is: 7,925.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,054.30 : 21,069.21 = 5,286.86 : x
  2. Step 2: Convert to fraction form
    14,054.30/21,069.21 = 5,286.86/x
  3. Step 3: Cross multiply
    14,054.30x = 21,069.21 × 5,286.86
  4. Step 4: Simplify right side
    14,054.30x = 111,389,963.58
  5. Step 5: Solve for x
    x = 111,389,963.58/14,054.30
  6. Step 6: Final answer
    x = 7,925.69

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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.