Home / 14,980.20-20,672.75-8,265.84

Finding the Fourth Proportional to 14,980.20, 20,672.75 and 8,265.84

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Solution

The fourth proportional to 14,980.20, 20,672.75 and 8,265.84 is: 11,406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.20 : 20,672.75 = 8,265.84 : x
  2. Step 2: Convert to fraction form
    14,980.20/20,672.75 = 8,265.84/x
  3. Step 3: Cross multiply
    14,980.20x = 20,672.75 × 8,265.84
  4. Step 4: Simplify right side
    14,980.20x = 170,877,587.00
  5. Step 5: Solve for x
    x = 170,877,587.00/14,980.20
  6. Step 6: Final answer
    x = 11,406.89

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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.