Home / 9,954.30-13,722.21-6,368.87

Finding the Fourth Proportional to 9,954.30, 13,722.21 and 6,368.87

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Solution

The fourth proportional to 9,954.30, 13,722.21 and 6,368.87 is: 8,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,954.30 : 13,722.21 = 6,368.87 : x
  2. Step 2: Convert to fraction form
    9,954.30/13,722.21 = 6,368.87/x
  3. Step 3: Cross multiply
    9,954.30x = 13,722.21 × 6,368.87
  4. Step 4: Simplify right side
    9,954.30x = 87,394,971.60
  5. Step 5: Solve for x
    x = 87,394,971.60/9,954.30
  6. Step 6: Final answer
    x = 8,779.62

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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.