Home / 11,815.34-16,304.49-6,779.07

Finding the Fourth Proportional to 11,815.34, 16,304.49 and 6,779.07

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Solution

The fourth proportional to 11,815.34, 16,304.49 and 6,779.07 is: 9,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.34 : 16,304.49 = 6,779.07 : x
  2. Step 2: Convert to fraction form
    11,815.34/16,304.49 = 6,779.07/x
  3. Step 3: Cross multiply
    11,815.34x = 16,304.49 × 6,779.07
  4. Step 4: Simplify right side
    11,815.34x = 110,529,279.02
  5. Step 5: Solve for x
    x = 110,529,279.02/11,815.34
  6. Step 6: Final answer
    x = 9,354.73

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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.