Home / 14,359.84-19,816.56-8,072.24

Finding the Fourth Proportional to 14,359.84, 19,816.56 and 8,072.24

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Solution

The fourth proportional to 14,359.84, 19,816.56 and 8,072.24 is: 11,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.84 : 19,816.56 = 8,072.24 : x
  2. Step 2: Convert to fraction form
    14,359.84/19,816.56 = 8,072.24/x
  3. Step 3: Cross multiply
    14,359.84x = 19,816.56 × 8,072.24
  4. Step 4: Simplify right side
    14,359.84x = 159,964,028.29
  5. Step 5: Solve for x
    x = 159,964,028.29/14,359.84
  6. Step 6: Final answer
    x = 11,139.68

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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.