Home / 14,178.83-21,271.43-4,318.88

Finding the Fourth Proportional to 14,178.83, 21,271.43 and 4,318.88

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Solution

The fourth proportional to 14,178.83, 21,271.43 and 4,318.88 is: 6,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.83 : 21,271.43 = 4,318.88 : x
  2. Step 2: Convert to fraction form
    14,178.83/21,271.43 = 4,318.88/x
  3. Step 3: Cross multiply
    14,178.83x = 21,271.43 × 4,318.88
  4. Step 4: Simplify right side
    14,178.83x = 91,868,732.00
  5. Step 5: Solve for x
    x = 91,868,732.00/14,178.83
  6. Step 6: Final answer
    x = 6,479.29

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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.