Home / 12,771.07-17,624.42-7,736.20

Finding the Fourth Proportional to 12,771.07, 17,624.42 and 7,736.20

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Solution

The fourth proportional to 12,771.07, 17,624.42 and 7,736.20 is: 10,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.07 : 17,624.42 = 7,736.20 : x
  2. Step 2: Convert to fraction form
    12,771.07/17,624.42 = 7,736.20/x
  3. Step 3: Cross multiply
    12,771.07x = 17,624.42 × 7,736.20
  4. Step 4: Simplify right side
    12,771.07x = 136,346,038.00
  5. Step 5: Solve for x
    x = 136,346,038.00/12,771.07
  6. Step 6: Final answer
    x = 10,676.16

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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.