Home / 11,866.21-16,374.84-6,488.50

Finding the Fourth Proportional to 11,866.21, 16,374.84 and 6,488.50

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Solution

The fourth proportional to 11,866.21, 16,374.84 and 6,488.50 is: 8,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.21 : 16,374.84 = 6,488.50 : x
  2. Step 2: Convert to fraction form
    11,866.21/16,374.84 = 6,488.50/x
  3. Step 3: Cross multiply
    11,866.21x = 16,374.84 × 6,488.50
  4. Step 4: Simplify right side
    11,866.21x = 106,248,149.34
  5. Step 5: Solve for x
    x = 106,248,149.34/11,866.21
  6. Step 6: Final answer
    x = 8,953.84

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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.