Home / 14,128.34-19,496.93-8,078.54

Finding the Fourth Proportional to 14,128.34, 19,496.93 and 8,078.54

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Solution

The fourth proportional to 14,128.34, 19,496.93 and 8,078.54 is: 11,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.34 : 19,496.93 = 8,078.54 : x
  2. Step 2: Convert to fraction form
    14,128.34/19,496.93 = 8,078.54/x
  3. Step 3: Cross multiply
    14,128.34x = 19,496.93 × 8,078.54
  4. Step 4: Simplify right side
    14,128.34x = 157,506,591.00
  5. Step 5: Solve for x
    x = 157,506,591.00/14,128.34
  6. Step 6: Final answer
    x = 11,148.28

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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.