Home / 8,543.23-11,790.96-5,185.40

Finding the Fourth Proportional to 8,543.23, 11,790.96 and 5,185.40

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Solution

The fourth proportional to 8,543.23, 11,790.96 and 5,185.40 is: 7,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.23 : 11,790.96 = 5,185.40 : x
  2. Step 2: Convert to fraction form
    8,543.23/11,790.96 = 5,185.40/x
  3. Step 3: Cross multiply
    8,543.23x = 11,790.96 × 5,185.40
  4. Step 4: Simplify right side
    8,543.23x = 61,140,843.98
  5. Step 5: Solve for x
    x = 61,140,843.98/8,543.23
  6. Step 6: Final answer
    x = 7,156.64

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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.