Home / 8,666.46-11,959.65-6,779.97

Finding the Fourth Proportional to 8,666.46, 11,959.65 and 6,779.97

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Solution

The fourth proportional to 8,666.46, 11,959.65 and 6,779.97 is: 9,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.46 : 11,959.65 = 6,779.97 : x
  2. Step 2: Convert to fraction form
    8,666.46/11,959.65 = 6,779.97/x
  3. Step 3: Cross multiply
    8,666.46x = 11,959.65 × 6,779.97
  4. Step 4: Simplify right side
    8,666.46x = 81,086,068.21
  5. Step 5: Solve for x
    x = 81,086,068.21/8,666.46
  6. Step 6: Final answer
    x = 9,356.31

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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.