Home / 13,310.79-19,965.29-5,915.67

Finding the Fourth Proportional to 13,310.79, 19,965.29 and 5,915.67

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Solution

The fourth proportional to 13,310.79, 19,965.29 and 5,915.67 is: 8,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.79 : 19,965.29 = 5,915.67 : x
  2. Step 2: Convert to fraction form
    13,310.79/19,965.29 = 5,915.67/x
  3. Step 3: Cross multiply
    13,310.79x = 19,965.29 × 5,915.67
  4. Step 4: Simplify right side
    13,310.79x = 118,108,037.52
  5. Step 5: Solve for x
    x = 118,108,037.52/13,310.79
  6. Step 6: Final answer
    x = 8,873.11

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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.