Home / 12,066.37-16,636.19-7,809.92

Finding the Fourth Proportional to 12,066.37, 16,636.19 and 7,809.92

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Solution

The fourth proportional to 12,066.37, 16,636.19 and 7,809.92 is: 10,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,066.37 : 16,636.19 = 7,809.92 : x
  2. Step 2: Convert to fraction form
    12,066.37/16,636.19 = 7,809.92/x
  3. Step 3: Cross multiply
    12,066.37x = 16,636.19 × 7,809.92
  4. Step 4: Simplify right side
    12,066.37x = 129,927,253.16
  5. Step 5: Solve for x
    x = 129,927,253.16/12,066.37
  6. Step 6: Final answer
    x = 10,767.72

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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.