Home / 8,009.48-12,031.56-6,779.36

Finding the Fourth Proportional to 8,009.48, 12,031.56 and 6,779.36

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Solution

The fourth proportional to 8,009.48, 12,031.56 and 6,779.36 is: 10,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.48 : 12,031.56 = 6,779.36 : x
  2. Step 2: Convert to fraction form
    8,009.48/12,031.56 = 6,779.36/x
  3. Step 3: Cross multiply
    8,009.48x = 12,031.56 × 6,779.36
  4. Step 4: Simplify right side
    8,009.48x = 81,566,276.60
  5. Step 5: Solve for x
    x = 81,566,276.60/8,009.48
  6. Step 6: Final answer
    x = 10,183.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.