Home / 12,089.86-16,669.80-10,198.10

Finding the Fourth Proportional to 12,089.86, 16,669.80 and 10,198.10

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Solution

The fourth proportional to 12,089.86, 16,669.80 and 10,198.10 is: 14,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.86 : 16,669.80 = 10,198.10 : x
  2. Step 2: Convert to fraction form
    12,089.86/16,669.80 = 10,198.10/x
  3. Step 3: Cross multiply
    12,089.86x = 16,669.80 × 10,198.10
  4. Step 4: Simplify right side
    12,089.86x = 170,000,329.05
  5. Step 5: Solve for x
    x = 170,000,329.05/12,089.86
  6. Step 6: Final answer
    x = 14,061.40

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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.