Home / 19,131.88-28,706.47-9,767.07

Finding the Fourth Proportional to 19,131.88, 28,706.47 and 9,767.07

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Solution

The fourth proportional to 19,131.88, 28,706.47 and 9,767.07 is: 14,655.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.88 : 28,706.47 = 9,767.07 : x
  2. Step 2: Convert to fraction form
    19,131.88/28,706.47 = 9,767.07/x
  3. Step 3: Cross multiply
    19,131.88x = 28,706.47 × 9,767.07
  4. Step 4: Simplify right side
    19,131.88x = 280,378,101.94
  5. Step 5: Solve for x
    x = 280,378,101.94/19,131.88
  6. Step 6: Final answer
    x = 14,655.02

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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.