Home / 13,476.33-18,595.01-7,811.79

Finding the Fourth Proportional to 13,476.33, 18,595.01 and 7,811.79

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Solution

The fourth proportional to 13,476.33, 18,595.01 and 7,811.79 is: 10,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,476.33 : 18,595.01 = 7,811.79 : x
  2. Step 2: Convert to fraction form
    13,476.33/18,595.01 = 7,811.79/x
  3. Step 3: Cross multiply
    13,476.33x = 18,595.01 × 7,811.79
  4. Step 4: Simplify right side
    13,476.33x = 145,260,274.11
  5. Step 5: Solve for x
    x = 145,260,274.11/13,476.33
  6. Step 6: Final answer
    x = 10,778.92

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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.