Home / 14,977.84-20,669.63-8,263.75

Finding the Fourth Proportional to 14,977.84, 20,669.63 and 8,263.75

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Solution

The fourth proportional to 14,977.84, 20,669.63 and 8,263.75 is: 11,404.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.84 : 20,669.63 = 8,263.75 : x
  2. Step 2: Convert to fraction form
    14,977.84/20,669.63 = 8,263.75/x
  3. Step 3: Cross multiply
    14,977.84x = 20,669.63 × 8,263.75
  4. Step 4: Simplify right side
    14,977.84x = 170,808,654.91
  5. Step 5: Solve for x
    x = 170,808,654.91/14,977.84
  6. Step 6: Final answer
    x = 11,404.09

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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.