Home / 13,909.16-19,196.26-7,941.68

Finding the Fourth Proportional to 13,909.16, 19,196.26 and 7,941.68

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Solution

The fourth proportional to 13,909.16, 19,196.26 and 7,941.68 is: 10,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.16 : 19,196.26 = 7,941.68 : x
  2. Step 2: Convert to fraction form
    13,909.16/19,196.26 = 7,941.68/x
  3. Step 3: Cross multiply
    13,909.16x = 19,196.26 × 7,941.68
  4. Step 4: Simplify right side
    13,909.16x = 152,450,554.12
  5. Step 5: Solve for x
    x = 152,450,554.12/13,909.16
  6. Step 6: Final answer
    x = 10,960.44

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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.