Home / 13,879.40-19,154.01-7,591.77

Finding the Fourth Proportional to 13,879.40, 19,154.01 and 7,591.77

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Solution

The fourth proportional to 13,879.40, 19,154.01 and 7,591.77 is: 10,476.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.40 : 19,154.01 = 7,591.77 : x
  2. Step 2: Convert to fraction form
    13,879.40/19,154.01 = 7,591.77/x
  3. Step 3: Cross multiply
    13,879.40x = 19,154.01 × 7,591.77
  4. Step 4: Simplify right side
    13,879.40x = 145,412,838.50
  5. Step 5: Solve for x
    x = 145,412,838.50/13,879.40
  6. Step 6: Final answer
    x = 10,476.89

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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.