Home / 10,827.68-14,939.64-6,111.05

Finding the Fourth Proportional to 10,827.68, 14,939.64 and 6,111.05

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Solution

The fourth proportional to 10,827.68, 14,939.64 and 6,111.05 is: 8,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,827.68 : 14,939.64 = 6,111.05 : x
  2. Step 2: Convert to fraction form
    10,827.68/14,939.64 = 6,111.05/x
  3. Step 3: Cross multiply
    10,827.68x = 14,939.64 × 6,111.05
  4. Step 4: Simplify right side
    10,827.68x = 91,296,812.32
  5. Step 5: Solve for x
    x = 91,296,812.32/10,827.68
  6. Step 6: Final answer
    x = 8,431.80

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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.