Home / 12,162.08-16,783.77-7,126.45

Finding the Fourth Proportional to 12,162.08, 16,783.77 and 7,126.45

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Solution

The fourth proportional to 12,162.08, 16,783.77 and 7,126.45 is: 9,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.08 : 16,783.77 = 7,126.45 : x
  2. Step 2: Convert to fraction form
    12,162.08/16,783.77 = 7,126.45/x
  3. Step 3: Cross multiply
    12,162.08x = 16,783.77 × 7,126.45
  4. Step 4: Simplify right side
    12,162.08x = 119,608,682.48
  5. Step 5: Solve for x
    x = 119,608,682.48/12,162.08
  6. Step 6: Final answer
    x = 9,834.56

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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.