Home / 12,267.92-16,939.15-8,918.74

Finding the Fourth Proportional to 12,267.92, 16,939.15 and 8,918.74

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Solution

The fourth proportional to 12,267.92, 16,939.15 and 8,918.74 is: 12,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.92 : 16,939.15 = 8,918.74 : x
  2. Step 2: Convert to fraction form
    12,267.92/16,939.15 = 8,918.74/x
  3. Step 3: Cross multiply
    12,267.92x = 16,939.15 × 8,918.74
  4. Step 4: Simplify right side
    12,267.92x = 151,075,898.63
  5. Step 5: Solve for x
    x = 151,075,898.63/12,267.92
  6. Step 6: Final answer
    x = 12,314.71

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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.