Home / 11,359.67-15,676.35-6,643.04

Finding the Fourth Proportional to 11,359.67, 15,676.35 and 6,643.04

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Solution

The fourth proportional to 11,359.67, 15,676.35 and 6,643.04 is: 9,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.67 : 15,676.35 = 6,643.04 : x
  2. Step 2: Convert to fraction form
    11,359.67/15,676.35 = 6,643.04/x
  3. Step 3: Cross multiply
    11,359.67x = 15,676.35 × 6,643.04
  4. Step 4: Simplify right side
    11,359.67x = 104,138,620.10
  5. Step 5: Solve for x
    x = 104,138,620.10/11,359.67
  6. Step 6: Final answer
    x = 9,167.40

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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.