Home / 14,428.24-19,908.12-8,461.78

Finding the Fourth Proportional to 14,428.24, 19,908.12 and 8,461.78

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Solution

The fourth proportional to 14,428.24, 19,908.12 and 8,461.78 is: 11,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.24 : 19,908.12 = 8,461.78 : x
  2. Step 2: Convert to fraction form
    14,428.24/19,908.12 = 8,461.78/x
  3. Step 3: Cross multiply
    14,428.24x = 19,908.12 × 8,461.78
  4. Step 4: Simplify right side
    14,428.24x = 168,458,131.65
  5. Step 5: Solve for x
    x = 168,458,131.65/14,428.24
  6. Step 6: Final answer
    x = 11,675.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.