Home / 12,777.80-19,166.70-9,667.40

Finding the Fourth Proportional to 12,777.80, 19,166.70 and 9,667.40

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Solution

The fourth proportional to 12,777.80, 19,166.70 and 9,667.40 is: 14,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.80 : 19,166.70 = 9,667.40 : x
  2. Step 2: Convert to fraction form
    12,777.80/19,166.70 = 9,667.40/x
  3. Step 3: Cross multiply
    12,777.80x = 19,166.70 × 9,667.40
  4. Step 4: Simplify right side
    12,777.80x = 185,292,155.58
  5. Step 5: Solve for x
    x = 185,292,155.58/12,777.80
  6. Step 6: Final answer
    x = 14,501.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.