Home / 8,686.84-11,987.82-4,708.02

Finding the Fourth Proportional to 8,686.84, 11,987.82 and 4,708.02

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Solution

The fourth proportional to 8,686.84, 11,987.82 and 4,708.02 is: 6,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.84 : 11,987.82 = 4,708.02 : x
  2. Step 2: Convert to fraction form
    8,686.84/11,987.82 = 4,708.02/x
  3. Step 3: Cross multiply
    8,686.84x = 11,987.82 × 4,708.02
  4. Step 4: Simplify right side
    8,686.84x = 56,438,896.32
  5. Step 5: Solve for x
    x = 56,438,896.32/8,686.84
  6. Step 6: Final answer
    x = 6,497.06

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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.