Home / 14,179.85-21,277.10-6,782.81

Finding the Fourth Proportional to 14,179.85, 21,277.10 and 6,782.81

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Solution

The fourth proportional to 14,179.85, 21,277.10 and 6,782.81 is: 10,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.85 : 21,277.10 = 6,782.81 : x
  2. Step 2: Convert to fraction form
    14,179.85/21,277.10 = 6,782.81/x
  3. Step 3: Cross multiply
    14,179.85x = 21,277.10 × 6,782.81
  4. Step 4: Simplify right side
    14,179.85x = 144,318,492.74
  5. Step 5: Solve for x
    x = 144,318,492.74/14,179.85
  6. Step 6: Final answer
    x = 10,177.72

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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.