Home / 14,216.84-19,619.19-7,929.21

Finding the Fourth Proportional to 14,216.84, 19,619.19 and 7,929.21

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Solution

The fourth proportional to 14,216.84, 19,619.19 and 7,929.21 is: 10,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.84 : 19,619.19 = 7,929.21 : x
  2. Step 2: Convert to fraction form
    14,216.84/19,619.19 = 7,929.21/x
  3. Step 3: Cross multiply
    14,216.84x = 19,619.19 × 7,929.21
  4. Step 4: Simplify right side
    14,216.84x = 155,564,677.54
  5. Step 5: Solve for x
    x = 155,564,677.54/14,216.84
  6. Step 6: Final answer
    x = 10,942.28

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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.