Home / 10,969.40-16,455.45-3,948.32

Finding the Fourth Proportional to 10,969.40, 16,455.45 and 3,948.32

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Solution

The fourth proportional to 10,969.40, 16,455.45 and 3,948.32 is: 5,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.40 : 16,455.45 = 3,948.32 : x
  2. Step 2: Convert to fraction form
    10,969.40/16,455.45 = 3,948.32/x
  3. Step 3: Cross multiply
    10,969.40x = 16,455.45 × 3,948.32
  4. Step 4: Simplify right side
    10,969.40x = 64,971,382.34
  5. Step 5: Solve for x
    x = 64,971,382.34/10,969.40
  6. Step 6: Final answer
    x = 5,922.97

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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.