Home / 13,975.32-19,287.90-8,671.85

Finding the Fourth Proportional to 13,975.32, 19,287.90 and 8,671.85

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Solution

The fourth proportional to 13,975.32, 19,287.90 and 8,671.85 is: 11,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.32 : 19,287.90 = 8,671.85 : x
  2. Step 2: Convert to fraction form
    13,975.32/19,287.90 = 8,671.85/x
  3. Step 3: Cross multiply
    13,975.32x = 19,287.90 × 8,671.85
  4. Step 4: Simplify right side
    13,975.32x = 167,261,679.18
  5. Step 5: Solve for x
    x = 167,261,679.18/13,975.32
  6. Step 6: Final answer
    x = 11,968.36

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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.