Home / 19,102.88-28,617.04-12,509.07

Finding the Fourth Proportional to 19,102.88, 28,617.04 and 12,509.07

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Solution

The fourth proportional to 19,102.88, 28,617.04 and 12,509.07 is: 18,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.88 : 28,617.04 = 12,509.07 : x
  2. Step 2: Convert to fraction form
    19,102.88/28,617.04 = 12,509.07/x
  3. Step 3: Cross multiply
    19,102.88x = 28,617.04 × 12,509.07
  4. Step 4: Simplify right side
    19,102.88x = 357,972,723.92
  5. Step 5: Solve for x
    x = 357,972,723.92/19,102.88
  6. Step 6: Final answer
    x = 18,739.20

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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.