Home / 13,315.18-19,975.12-4,548.04

Finding the Fourth Proportional to 13,315.18, 19,975.12 and 4,548.04

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Solution

The fourth proportional to 13,315.18, 19,975.12 and 4,548.04 is: 6,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.18 : 19,975.12 = 4,548.04 : x
  2. Step 2: Convert to fraction form
    13,315.18/19,975.12 = 4,548.04/x
  3. Step 3: Cross multiply
    13,315.18x = 19,975.12 × 4,548.04
  4. Step 4: Simplify right side
    13,315.18x = 90,847,644.76
  5. Step 5: Solve for x
    x = 90,847,644.76/13,315.18
  6. Step 6: Final answer
    x = 6,822.86

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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.