Home / 11,826.28-16,320.72-6,521.05

Finding the Fourth Proportional to 11,826.28, 16,320.72 and 6,521.05

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Solution

The fourth proportional to 11,826.28, 16,320.72 and 6,521.05 is: 8,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.28 : 16,320.72 = 6,521.05 : x
  2. Step 2: Convert to fraction form
    11,826.28/16,320.72 = 6,521.05/x
  3. Step 3: Cross multiply
    11,826.28x = 16,320.72 × 6,521.05
  4. Step 4: Simplify right side
    11,826.28x = 106,428,231.16
  5. Step 5: Solve for x
    x = 106,428,231.16/11,826.28
  6. Step 6: Final answer
    x = 8,999.30

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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.