Home / 14,380.53-21,455.28-12,801.78

Finding the Fourth Proportional to 14,380.53, 21,455.28 and 12,801.78

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Solution

The fourth proportional to 14,380.53, 21,455.28 and 12,801.78 is: 19,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.53 : 21,455.28 = 12,801.78 : x
  2. Step 2: Convert to fraction form
    14,380.53/21,455.28 = 12,801.78/x
  3. Step 3: Cross multiply
    14,380.53x = 21,455.28 × 12,801.78
  4. Step 4: Simplify right side
    14,380.53x = 274,665,774.40
  5. Step 5: Solve for x
    x = 274,665,774.40/14,380.53
  6. Step 6: Final answer
    x = 19,099.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.