Home / 8,740.85-13,111.07-4,869.86

Finding the Fourth Proportional to 8,740.85, 13,111.07 and 4,869.86

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Solution

The fourth proportional to 8,740.85, 13,111.07 and 4,869.86 is: 7,304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.85 : 13,111.07 = 4,869.86 : x
  2. Step 2: Convert to fraction form
    8,740.85/13,111.07 = 4,869.86/x
  3. Step 3: Cross multiply
    8,740.85x = 13,111.07 × 4,869.86
  4. Step 4: Simplify right side
    8,740.85x = 63,848,985.45
  5. Step 5: Solve for x
    x = 63,848,985.45/8,740.85
  6. Step 6: Final answer
    x = 7,304.67

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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.