Home / 14,128.03-19,496.73-7,840.41

Finding the Fourth Proportional to 14,128.03, 19,496.73 and 7,840.41

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Solution

The fourth proportional to 14,128.03, 19,496.73 and 7,840.41 is: 10,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.03 : 19,496.73 = 7,840.41 : x
  2. Step 2: Convert to fraction form
    14,128.03/19,496.73 = 7,840.41/x
  3. Step 3: Cross multiply
    14,128.03x = 19,496.73 × 7,840.41
  4. Step 4: Simplify right side
    14,128.03x = 152,862,313.15
  5. Step 5: Solve for x
    x = 152,862,313.15/14,128.03
  6. Step 6: Final answer
    x = 10,819.79

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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.