Home / 11,826.55-16,320.61-6,521.45

Finding the Fourth Proportional to 11,826.55, 16,320.61 and 6,521.45

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Solution

The fourth proportional to 11,826.55, 16,320.61 and 6,521.45 is: 8,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.55 : 16,320.61 = 6,521.45 : x
  2. Step 2: Convert to fraction form
    11,826.55/16,320.61 = 6,521.45/x
  3. Step 3: Cross multiply
    11,826.55x = 16,320.61 × 6,521.45
  4. Step 4: Simplify right side
    11,826.55x = 106,434,042.08
  5. Step 5: Solve for x
    x = 106,434,042.08/11,826.55
  6. Step 6: Final answer
    x = 8,999.59

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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.