Home / 13,919.70-19,209.12-7,953.24

Finding the Fourth Proportional to 13,919.70, 19,209.12 and 7,953.24

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Solution

The fourth proportional to 13,919.70, 19,209.12 and 7,953.24 is: 10,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.70 : 19,209.12 = 7,953.24 : x
  2. Step 2: Convert to fraction form
    13,919.70/19,209.12 = 7,953.24/x
  3. Step 3: Cross multiply
    13,919.70x = 19,209.12 × 7,953.24
  4. Step 4: Simplify right side
    13,919.70x = 152,774,741.55
  5. Step 5: Solve for x
    x = 152,774,741.55/13,919.70
  6. Step 6: Final answer
    x = 10,975.43

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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.