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Finding the Fourth Proportional to 16,879.86, 25,320.63 and 7,018.10

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Solution

The fourth proportional to 16,879.86, 25,320.63 and 7,018.10 is: 10,527.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.86 : 25,320.63 = 7,018.10 : x
  2. Step 2: Convert to fraction form
    16,879.86/25,320.63 = 7,018.10/x
  3. Step 3: Cross multiply
    16,879.86x = 25,320.63 × 7,018.10
  4. Step 4: Simplify right side
    16,879.86x = 177,702,713.40
  5. Step 5: Solve for x
    x = 177,702,713.40/16,879.86
  6. Step 6: Final answer
    x = 10,527.50

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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.