Home / 14,709.98-20,283.28-13,776.86

Finding the Fourth Proportional to 14,709.98, 20,283.28 and 13,776.86

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Solution

The fourth proportional to 14,709.98, 20,283.28 and 13,776.86 is: 18,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.98 : 20,283.28 = 13,776.86 : x
  2. Step 2: Convert to fraction form
    14,709.98/20,283.28 = 13,776.86/x
  3. Step 3: Cross multiply
    14,709.98x = 20,283.28 × 13,776.86
  4. Step 4: Simplify right side
    14,709.98x = 279,439,908.90
  5. Step 5: Solve for x
    x = 279,439,908.90/14,709.98
  6. Step 6: Final answer
    x = 18,996.62

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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.