Home / 11,916.04-16,438.10-7,443.22

Finding the Fourth Proportional to 11,916.04, 16,438.10 and 7,443.22

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Solution

The fourth proportional to 11,916.04, 16,438.10 and 7,443.22 is: 10,267.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.04 : 16,438.10 = 7,443.22 : x
  2. Step 2: Convert to fraction form
    11,916.04/16,438.10 = 7,443.22/x
  3. Step 3: Cross multiply
    11,916.04x = 16,438.10 × 7,443.22
  4. Step 4: Simplify right side
    11,916.04x = 122,352,394.68
  5. Step 5: Solve for x
    x = 122,352,394.68/11,916.04
  6. Step 6: Final answer
    x = 10,267.87

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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.