Home / 14,239.36-19,648.48-8,189.28

Finding the Fourth Proportional to 14,239.36, 19,648.48 and 8,189.28

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Solution

The fourth proportional to 14,239.36, 19,648.48 and 8,189.28 is: 11,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.36 : 19,648.48 = 8,189.28 : x
  2. Step 2: Convert to fraction form
    14,239.36/19,648.48 = 8,189.28/x
  3. Step 3: Cross multiply
    14,239.36x = 19,648.48 × 8,189.28
  4. Step 4: Simplify right side
    14,239.36x = 160,906,904.29
  5. Step 5: Solve for x
    x = 160,906,904.29/14,239.36
  6. Step 6: Final answer
    x = 11,300.15

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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.