Home / 14,206.40-21,309.64-6,406.10

Finding the Fourth Proportional to 14,206.40, 21,309.64 and 6,406.10

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Solution

The fourth proportional to 14,206.40, 21,309.64 and 6,406.10 is: 9,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,206.40 : 21,309.64 = 6,406.10 : x
  2. Step 2: Convert to fraction form
    14,206.40/21,309.64 = 6,406.10/x
  3. Step 3: Cross multiply
    14,206.40x = 21,309.64 × 6,406.10
  4. Step 4: Simplify right side
    14,206.40x = 136,511,684.80
  5. Step 5: Solve for x
    x = 136,511,684.80/14,206.40
  6. Step 6: Final answer
    x = 9,609.17

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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.