Home / 8,779.26-12,115.36-6,543.06

Finding the Fourth Proportional to 8,779.26, 12,115.36 and 6,543.06

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Solution

The fourth proportional to 8,779.26, 12,115.36 and 6,543.06 is: 9,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.26 : 12,115.36 = 6,543.06 : x
  2. Step 2: Convert to fraction form
    8,779.26/12,115.36 = 6,543.06/x
  3. Step 3: Cross multiply
    8,779.26x = 12,115.36 × 6,543.06
  4. Step 4: Simplify right side
    8,779.26x = 79,271,527.40
  5. Step 5: Solve for x
    x = 79,271,527.40/8,779.26
  6. Step 6: Final answer
    x = 9,029.41

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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.