Home / 10,391.77-14,340.63-5,676.05

Finding the Fourth Proportional to 10,391.77, 14,340.63 and 5,676.05

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Solution

The fourth proportional to 10,391.77, 14,340.63 and 5,676.05 is: 7,832.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.77 : 14,340.63 = 5,676.05 : x
  2. Step 2: Convert to fraction form
    10,391.77/14,340.63 = 5,676.05/x
  3. Step 3: Cross multiply
    10,391.77x = 14,340.63 × 5,676.05
  4. Step 4: Simplify right side
    10,391.77x = 81,398,190.05
  5. Step 5: Solve for x
    x = 81,398,190.05/10,391.77
  6. Step 6: Final answer
    x = 7,832.95

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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.