Home / 14,765.77-20,381.70-8,799.31

Finding the Fourth Proportional to 14,765.77, 20,381.70 and 8,799.31

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Solution

The fourth proportional to 14,765.77, 20,381.70 and 8,799.31 is: 12,145.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.77 : 20,381.70 = 8,799.31 : x
  2. Step 2: Convert to fraction form
    14,765.77/20,381.70 = 8,799.31/x
  3. Step 3: Cross multiply
    14,765.77x = 20,381.70 × 8,799.31
  4. Step 4: Simplify right side
    14,765.77x = 179,344,896.63
  5. Step 5: Solve for x
    x = 179,344,896.63/14,765.77
  6. Step 6: Final answer
    x = 12,145.99

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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.