Home / 9,417.80-14,128.32-3,874.16

Finding the Fourth Proportional to 9,417.80, 14,128.32 and 3,874.16

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Solution

The fourth proportional to 9,417.80, 14,128.32 and 3,874.16 is: 5,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,417.80 : 14,128.32 = 3,874.16 : x
  2. Step 2: Convert to fraction form
    9,417.80/14,128.32 = 3,874.16/x
  3. Step 3: Cross multiply
    9,417.80x = 14,128.32 × 3,874.16
  4. Step 4: Simplify right side
    9,417.80x = 54,735,372.21
  5. Step 5: Solve for x
    x = 54,735,372.21/9,417.80
  6. Step 6: Final answer
    x = 5,811.91

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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.