Home / 14,177.04-19,565.11-8,128.28

Finding the Fourth Proportional to 14,177.04, 19,565.11 and 8,128.28

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Solution

The fourth proportional to 14,177.04, 19,565.11 and 8,128.28 is: 11,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.04 : 19,565.11 = 8,128.28 : x
  2. Step 2: Convert to fraction form
    14,177.04/19,565.11 = 8,128.28/x
  3. Step 3: Cross multiply
    14,177.04x = 19,565.11 × 8,128.28
  4. Step 4: Simplify right side
    14,177.04x = 159,030,692.31
  5. Step 5: Solve for x
    x = 159,030,692.31/14,177.04
  6. Step 6: Final answer
    x = 11,217.48

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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.