Home / 20,664.16-30,977.13-7,513

Finding the Fourth Proportional to 20,664.16, 30,977.13 and 7,513

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Solution

The fourth proportional to 20,664.16, 30,977.13 and 7,513 is: 11,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.16 : 30,977.13 = 7,513 : x
  2. Step 2: Convert to fraction form
    20,664.16/30,977.13 = 7,513/x
  3. Step 3: Cross multiply
    20,664.16x = 30,977.13 × 7,513
  4. Step 4: Simplify right side
    20,664.16x = 232,731,177.69
  5. Step 5: Solve for x
    x = 232,731,177.69/20,664.16
  6. Step 6: Final answer
    x = 11,262.55

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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.