Home / 11,907.21-17,864.29-5,331.86

Finding the Fourth Proportional to 11,907.21, 17,864.29 and 5,331.86

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Solution

The fourth proportional to 11,907.21, 17,864.29 and 5,331.86 is: 7,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,907.21 : 17,864.29 = 5,331.86 : x
  2. Step 2: Convert to fraction form
    11,907.21/17,864.29 = 5,331.86/x
  3. Step 3: Cross multiply
    11,907.21x = 17,864.29 × 5,331.86
  4. Step 4: Simplify right side
    11,907.21x = 95,249,877.61
  5. Step 5: Solve for x
    x = 95,249,877.61/11,907.21
  6. Step 6: Final answer
    x = 7,999.34

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1.5x scale

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.