Home / 8,690.52-11,988.86-5,104.29

Finding the Fourth Proportional to 8,690.52, 11,988.86 and 5,104.29

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Solution

The fourth proportional to 8,690.52, 11,988.86 and 5,104.29 is: 7,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.52 : 11,988.86 = 5,104.29 : x
  2. Step 2: Convert to fraction form
    8,690.52/11,988.86 = 5,104.29/x
  3. Step 3: Cross multiply
    8,690.52x = 11,988.86 × 5,104.29
  4. Step 4: Simplify right side
    8,690.52x = 61,194,632.64
  5. Step 5: Solve for x
    x = 61,194,632.64/8,690.52
  6. Step 6: Final answer
    x = 7,041.54

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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.