Home / 13,931.53-19,209.05-11,404.33

Finding the Fourth Proportional to 13,931.53, 19,209.05 and 11,404.33

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Solution

The fourth proportional to 13,931.53, 19,209.05 and 11,404.33 is: 15,724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.53 : 19,209.05 = 11,404.33 : x
  2. Step 2: Convert to fraction form
    13,931.53/19,209.05 = 11,404.33/x
  3. Step 3: Cross multiply
    13,931.53x = 19,209.05 × 11,404.33
  4. Step 4: Simplify right side
    13,931.53x = 219,066,282.91
  5. Step 5: Solve for x
    x = 219,066,282.91/13,931.53
  6. Step 6: Final answer
    x = 15,724.50

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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.