Home / 14,288.30-21,423.83-6,386.55

Finding the Fourth Proportional to 14,288.30, 21,423.83 and 6,386.55

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Solution

The fourth proportional to 14,288.30, 21,423.83 and 6,386.55 is: 9,575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.30 : 21,423.83 = 6,386.55 : x
  2. Step 2: Convert to fraction form
    14,288.30/21,423.83 = 6,386.55/x
  3. Step 3: Cross multiply
    14,288.30x = 21,423.83 × 6,386.55
  4. Step 4: Simplify right side
    14,288.30x = 136,824,249.21
  5. Step 5: Solve for x
    x = 136,824,249.21/14,288.30
  6. Step 6: Final answer
    x = 9,575.97

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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.