Home / 8,266.35-12,381.30-4,973.70

Finding the Fourth Proportional to 8,266.35, 12,381.30 and 4,973.70

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Solution

The fourth proportional to 8,266.35, 12,381.30 and 4,973.70 is: 7,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.35 : 12,381.30 = 4,973.70 : x
  2. Step 2: Convert to fraction form
    8,266.35/12,381.30 = 4,973.70/x
  3. Step 3: Cross multiply
    8,266.35x = 12,381.30 × 4,973.70
  4. Step 4: Simplify right side
    8,266.35x = 61,580,871.81
  5. Step 5: Solve for x
    x = 61,580,871.81/8,266.35
  6. Step 6: Final answer
    x = 7,449.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.