Home / 13,127.09-19,698.84-8,747.63

Finding the Fourth Proportional to 13,127.09, 19,698.84 and 8,747.63

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Solution

The fourth proportional to 13,127.09, 19,698.84 and 8,747.63 is: 13,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.09 : 19,698.84 = 8,747.63 : x
  2. Step 2: Convert to fraction form
    13,127.09/19,698.84 = 8,747.63/x
  3. Step 3: Cross multiply
    13,127.09x = 19,698.84 × 8,747.63
  4. Step 4: Simplify right side
    13,127.09x = 172,318,065.26
  5. Step 5: Solve for x
    x = 172,318,065.26/13,127.09
  6. Step 6: Final answer
    x = 13,126.90

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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.