Home / 14,122.99-19,489.73-7,835.36

Finding the Fourth Proportional to 14,122.99, 19,489.73 and 7,835.36

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Solution

The fourth proportional to 14,122.99, 19,489.73 and 7,835.36 is: 10,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.99 : 19,489.73 = 7,835.36 : x
  2. Step 2: Convert to fraction form
    14,122.99/19,489.73 = 7,835.36/x
  3. Step 3: Cross multiply
    14,122.99x = 19,489.73 × 7,835.36
  4. Step 4: Simplify right side
    14,122.99x = 152,709,050.85
  5. Step 5: Solve for x
    x = 152,709,050.85/14,122.99
  6. Step 6: Final answer
    x = 10,812.80

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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.