Home / 9,790.90-14,687.89-3,215.59

Finding the Fourth Proportional to 9,790.90, 14,687.89 and 3,215.59

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Solution

The fourth proportional to 9,790.90, 14,687.89 and 3,215.59 is: 4,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.90 : 14,687.89 = 3,215.59 : x
  2. Step 2: Convert to fraction form
    9,790.90/14,687.89 = 3,215.59/x
  3. Step 3: Cross multiply
    9,790.90x = 14,687.89 × 3,215.59
  4. Step 4: Simplify right side
    9,790.90x = 47,230,232.21
  5. Step 5: Solve for x
    x = 47,230,232.21/9,790.90
  6. Step 6: Final answer
    x = 4,823.89

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1.5x scale

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.