Home / 19,983.08-27,564.78-12,913.68

Finding the Fourth Proportional to 19,983.08, 27,564.78 and 12,913.68

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Solution

The fourth proportional to 19,983.08, 27,564.78 and 12,913.68 is: 17,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.08 : 27,564.78 = 12,913.68 : x
  2. Step 2: Convert to fraction form
    19,983.08/27,564.78 = 12,913.68/x
  3. Step 3: Cross multiply
    19,983.08x = 27,564.78 × 12,913.68
  4. Step 4: Simplify right side
    19,983.08x = 355,962,748.19
  5. Step 5: Solve for x
    x = 355,962,748.19/19,983.08
  6. Step 6: Final answer
    x = 17,813.21

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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.