Home / 14,008.52-21,015.85-4,148.56

Finding the Fourth Proportional to 14,008.52, 21,015.85 and 4,148.56

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Solution

The fourth proportional to 14,008.52, 21,015.85 and 4,148.56 is: 6,223.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.52 : 21,015.85 = 4,148.56 : x
  2. Step 2: Convert to fraction form
    14,008.52/21,015.85 = 4,148.56/x
  3. Step 3: Cross multiply
    14,008.52x = 21,015.85 × 4,148.56
  4. Step 4: Simplify right side
    14,008.52x = 87,185,530.57
  5. Step 5: Solve for x
    x = 87,185,530.57/14,008.52
  6. Step 6: Final answer
    x = 6,223.75

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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.