Home / 12,971.42-19,457.58-4,206.41

Finding the Fourth Proportional to 12,971.42, 19,457.58 and 4,206.41

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Solution

The fourth proportional to 12,971.42, 19,457.58 and 4,206.41 is: 6,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.42 : 19,457.58 = 4,206.41 : x
  2. Step 2: Convert to fraction form
    12,971.42/19,457.58 = 4,206.41/x
  3. Step 3: Cross multiply
    12,971.42x = 19,457.58 × 4,206.41
  4. Step 4: Simplify right side
    12,971.42x = 81,846,559.09
  5. Step 5: Solve for x
    x = 81,846,559.09/12,971.42
  6. Step 6: Final answer
    x = 6,309.76

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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.