Home / 14,415.73-21,520.53-13,387.84

Finding the Fourth Proportional to 14,415.73, 21,520.53 and 13,387.84

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Solution

The fourth proportional to 14,415.73, 21,520.53 and 13,387.84 is: 19,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.73 : 21,520.53 = 13,387.84 : x
  2. Step 2: Convert to fraction form
    14,415.73/21,520.53 = 13,387.84/x
  3. Step 3: Cross multiply
    14,415.73x = 21,520.53 × 13,387.84
  4. Step 4: Simplify right side
    14,415.73x = 288,113,358.55
  5. Step 5: Solve for x
    x = 288,113,358.55/14,415.73
  6. Step 6: Final answer
    x = 19,986.04

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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.