Home / 11,885.20-16,403.31-6,848.45

Finding the Fourth Proportional to 11,885.20, 16,403.31 and 6,848.45

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Solution

The fourth proportional to 11,885.20, 16,403.31 and 6,848.45 is: 9,451.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,885.20 : 16,403.31 = 6,848.45 : x
  2. Step 2: Convert to fraction form
    11,885.20/16,403.31 = 6,848.45/x
  3. Step 3: Cross multiply
    11,885.20x = 16,403.31 × 6,848.45
  4. Step 4: Simplify right side
    11,885.20x = 112,337,248.37
  5. Step 5: Solve for x
    x = 112,337,248.37/11,885.20
  6. Step 6: Final answer
    x = 9,451.86

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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.