Home / 12,969.56-19,457.18-4,205.36

Finding the Fourth Proportional to 12,969.56, 19,457.18 and 4,205.36

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Solution

The fourth proportional to 12,969.56, 19,457.18 and 4,205.36 is: 6,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969.56 : 19,457.18 = 4,205.36 : x
  2. Step 2: Convert to fraction form
    12,969.56/19,457.18 = 4,205.36/x
  3. Step 3: Cross multiply
    12,969.56x = 19,457.18 × 4,205.36
  4. Step 4: Simplify right side
    12,969.56x = 81,824,328.17
  5. Step 5: Solve for x
    x = 81,824,328.17/12,969.56
  6. Step 6: Final answer
    x = 6,308.95

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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.