Home / 11,900.45-16,421.70-6,595.15

Finding the Fourth Proportional to 11,900.45, 16,421.70 and 6,595.15

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Solution

The fourth proportional to 11,900.45, 16,421.70 and 6,595.15 is: 9,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.45 : 16,421.70 = 6,595.15 : x
  2. Step 2: Convert to fraction form
    11,900.45/16,421.70 = 6,595.15/x
  3. Step 3: Cross multiply
    11,900.45x = 16,421.70 × 6,595.15
  4. Step 4: Simplify right side
    11,900.45x = 108,303,492.65
  5. Step 5: Solve for x
    x = 108,303,492.65/11,900.45
  6. Step 6: Final answer
    x = 9,100.79

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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.