Home / 8,682.33-11,981.40-4,905.89

Finding the Fourth Proportional to 8,682.33, 11,981.40 and 4,905.89

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Solution

The fourth proportional to 8,682.33, 11,981.40 and 4,905.89 is: 6,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.33 : 11,981.40 = 4,905.89 : x
  2. Step 2: Convert to fraction form
    8,682.33/11,981.40 = 4,905.89/x
  3. Step 3: Cross multiply
    8,682.33x = 11,981.40 × 4,905.89
  4. Step 4: Simplify right side
    8,682.33x = 58,779,397.07
  5. Step 5: Solve for x
    x = 58,779,397.07/8,682.33
  6. Step 6: Final answer
    x = 6,770.00

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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.