Home / 14,765.33-20,376.50-8,390.92

Finding the Fourth Proportional to 14,765.33, 20,376.50 and 8,390.92

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Solution

The fourth proportional to 14,765.33, 20,376.50 and 8,390.92 is: 11,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.33 : 20,376.50 = 8,390.92 : x
  2. Step 2: Convert to fraction form
    14,765.33/20,376.50 = 8,390.92/x
  3. Step 3: Cross multiply
    14,765.33x = 20,376.50 × 8,390.92
  4. Step 4: Simplify right side
    14,765.33x = 170,977,526.69
  5. Step 5: Solve for x
    x = 170,977,526.69/14,765.33
  6. Step 6: Final answer
    x = 11,579.66

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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.