Home / 13,911.46-20,868.32-4,551.28

Finding the Fourth Proportional to 13,911.46, 20,868.32 and 4,551.28

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Solution

The fourth proportional to 13,911.46, 20,868.32 and 4,551.28 is: 6,827.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.46 : 20,868.32 = 4,551.28 : x
  2. Step 2: Convert to fraction form
    13,911.46/20,868.32 = 4,551.28/x
  3. Step 3: Cross multiply
    13,911.46x = 20,868.32 × 4,551.28
  4. Step 4: Simplify right side
    13,911.46x = 94,977,567.45
  5. Step 5: Solve for x
    x = 94,977,567.45/13,911.46
  6. Step 6: Final answer
    x = 6,827.29

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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.