Home / 12,299.01-16,971.12-6,920.79

Finding the Fourth Proportional to 12,299.01, 16,971.12 and 6,920.79

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Solution

The fourth proportional to 12,299.01, 16,971.12 and 6,920.79 is: 9,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.01 : 16,971.12 = 6,920.79 : x
  2. Step 2: Convert to fraction form
    12,299.01/16,971.12 = 6,920.79/x
  3. Step 3: Cross multiply
    12,299.01x = 16,971.12 × 6,920.79
  4. Step 4: Simplify right side
    12,299.01x = 117,453,589.41
  5. Step 5: Solve for x
    x = 117,453,589.41/12,299.01
  6. Step 6: Final answer
    x = 9,549.84

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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.