Home / 10,380.30-15,570.35-2,984.73

Finding the Fourth Proportional to 10,380.30, 15,570.35 and 2,984.73

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Solution

The fourth proportional to 10,380.30, 15,570.35 and 2,984.73 is: 4,477.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.30 : 15,570.35 = 2,984.73 : x
  2. Step 2: Convert to fraction form
    10,380.30/15,570.35 = 2,984.73/x
  3. Step 3: Cross multiply
    10,380.30x = 15,570.35 × 2,984.73
  4. Step 4: Simplify right side
    10,380.30x = 46,473,290.76
  5. Step 5: Solve for x
    x = 46,473,290.76/10,380.30
  6. Step 6: Final answer
    x = 4,477.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.