Home / 14,977.12-20,669.37-8,605.70

Finding the Fourth Proportional to 14,977.12, 20,669.37 and 8,605.70

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Solution

The fourth proportional to 14,977.12, 20,669.37 and 8,605.70 is: 11,876.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.12 : 20,669.37 = 8,605.70 : x
  2. Step 2: Convert to fraction form
    14,977.12/20,669.37 = 8,605.70/x
  3. Step 3: Cross multiply
    14,977.12x = 20,669.37 × 8,605.70
  4. Step 4: Simplify right side
    14,977.12x = 177,874,416.81
  5. Step 5: Solve for x
    x = 177,874,416.81/14,977.12
  6. Step 6: Final answer
    x = 11,876.41

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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.