Home / 11,826.72-16,320.04-6,521.42

Finding the Fourth Proportional to 11,826.72, 16,320.04 and 6,521.42

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Solution

The fourth proportional to 11,826.72, 16,320.04 and 6,521.42 is: 8,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.72 : 16,320.04 = 6,521.42 : x
  2. Step 2: Convert to fraction form
    11,826.72/16,320.04 = 6,521.42/x
  3. Step 3: Cross multiply
    11,826.72x = 16,320.04 × 6,521.42
  4. Step 4: Simplify right side
    11,826.72x = 106,429,835.26
  5. Step 5: Solve for x
    x = 106,429,835.26/11,826.72
  6. Step 6: Final answer
    x = 8,999.10

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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.