Home / 14,428.28-19,910.94-8,054.50

Finding the Fourth Proportional to 14,428.28, 19,910.94 and 8,054.50

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Solution

The fourth proportional to 14,428.28, 19,910.94 and 8,054.50 is: 11,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.28 : 19,910.94 = 8,054.50 : x
  2. Step 2: Convert to fraction form
    14,428.28/19,910.94 = 8,054.50/x
  3. Step 3: Cross multiply
    14,428.28x = 19,910.94 × 8,054.50
  4. Step 4: Simplify right side
    14,428.28x = 160,372,666.23
  5. Step 5: Solve for x
    x = 160,372,666.23/14,428.28
  6. Step 6: Final answer
    x = 11,115.16

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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.