Home / 14,320.40-19,764.36-8,354

Finding the Fourth Proportional to 14,320.40, 19,764.36 and 8,354

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Solution

The fourth proportional to 14,320.40, 19,764.36 and 8,354 is: 11,529.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.40 : 19,764.36 = 8,354 : x
  2. Step 2: Convert to fraction form
    14,320.40/19,764.36 = 8,354/x
  3. Step 3: Cross multiply
    14,320.40x = 19,764.36 × 8,354
  4. Step 4: Simplify right side
    14,320.40x = 165,111,463.44
  5. Step 5: Solve for x
    x = 165,111,463.44/14,320.40
  6. Step 6: Final answer
    x = 11,529.81

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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.