Home / 13,913.80-19,196.19-7,941.22

Finding the Fourth Proportional to 13,913.80, 19,196.19 and 7,941.22

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Solution

The fourth proportional to 13,913.80, 19,196.19 and 7,941.22 is: 10,956.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.80 : 19,196.19 = 7,941.22 : x
  2. Step 2: Convert to fraction form
    13,913.80/19,196.19 = 7,941.22/x
  3. Step 3: Cross multiply
    13,913.80x = 19,196.19 × 7,941.22
  4. Step 4: Simplify right side
    13,913.80x = 152,441,167.95
  5. Step 5: Solve for x
    x = 152,441,167.95/13,913.80
  6. Step 6: Final answer
    x = 10,956.11

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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.