Home / 14,139.09-21,176.34-6,748.75

Finding the Fourth Proportional to 14,139.09, 21,176.34 and 6,748.75

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Solution

The fourth proportional to 14,139.09, 21,176.34 and 6,748.75 is: 10,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.09 : 21,176.34 = 6,748.75 : x
  2. Step 2: Convert to fraction form
    14,139.09/21,176.34 = 6,748.75/x
  3. Step 3: Cross multiply
    14,139.09x = 21,176.34 × 6,748.75
  4. Step 4: Simplify right side
    14,139.09x = 142,913,825.74
  5. Step 5: Solve for x
    x = 142,913,825.74/14,139.09
  6. Step 6: Final answer
    x = 10,107.71

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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.