Home / 15,078.84-22,619.81-5,218.10

Finding the Fourth Proportional to 15,078.84, 22,619.81 and 5,218.10

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Solution

The fourth proportional to 15,078.84, 22,619.81 and 5,218.10 is: 7,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.84 : 22,619.81 = 5,218.10 : x
  2. Step 2: Convert to fraction form
    15,078.84/22,619.81 = 5,218.10/x
  3. Step 3: Cross multiply
    15,078.84x = 22,619.81 × 5,218.10
  4. Step 4: Simplify right side
    15,078.84x = 118,032,385.98
  5. Step 5: Solve for x
    x = 118,032,385.98/15,078.84
  6. Step 6: Final answer
    x = 7,827.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.