Home / 8,543.07-11,790.45-5,186.75

Finding the Fourth Proportional to 8,543.07, 11,790.45 and 5,186.75

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Solution

The fourth proportional to 8,543.07, 11,790.45 and 5,186.75 is: 7,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.07 : 11,790.45 = 5,186.75 : x
  2. Step 2: Convert to fraction form
    8,543.07/11,790.45 = 5,186.75/x
  3. Step 3: Cross multiply
    8,543.07x = 11,790.45 × 5,186.75
  4. Step 4: Simplify right side
    8,543.07x = 61,154,057.59
  5. Step 5: Solve for x
    x = 61,154,057.59/8,543.07
  6. Step 6: Final answer
    x = 7,158.32

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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.