Home / 13,385.79-20,080.06-4,618.67

Finding the Fourth Proportional to 13,385.79, 20,080.06 and 4,618.67

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Solution

The fourth proportional to 13,385.79, 20,080.06 and 4,618.67 is: 6,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.79 : 20,080.06 = 4,618.67 : x
  2. Step 2: Convert to fraction form
    13,385.79/20,080.06 = 4,618.67/x
  3. Step 3: Cross multiply
    13,385.79x = 20,080.06 × 4,618.67
  4. Step 4: Simplify right side
    13,385.79x = 92,743,058.77
  5. Step 5: Solve for x
    x = 92,743,058.77/13,385.79
  6. Step 6: Final answer
    x = 6,928.47

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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.