Home / 8,685.52-11,985.43-4,908.85

Finding the Fourth Proportional to 8,685.52, 11,985.43 and 4,908.85

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Solution

The fourth proportional to 8,685.52, 11,985.43 and 4,908.85 is: 6,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.52 : 11,985.43 = 4,908.85 : x
  2. Step 2: Convert to fraction form
    8,685.52/11,985.43 = 4,908.85/x
  3. Step 3: Cross multiply
    8,685.52x = 11,985.43 × 4,908.85
  4. Step 4: Simplify right side
    8,685.52x = 58,834,678.06
  5. Step 5: Solve for x
    x = 58,834,678.06/8,685.52
  6. Step 6: Final answer
    x = 6,773.88

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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.