Home / 13,315.34-19,965.51-4,425.90

Finding the Fourth Proportional to 13,315.34, 19,965.51 and 4,425.90

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Solution

The fourth proportional to 13,315.34, 19,965.51 and 4,425.90 is: 6,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.34 : 19,965.51 = 4,425.90 : x
  2. Step 2: Convert to fraction form
    13,315.34/19,965.51 = 4,425.90/x
  3. Step 3: Cross multiply
    13,315.34x = 19,965.51 × 4,425.90
  4. Step 4: Simplify right side
    13,315.34x = 88,365,350.71
  5. Step 5: Solve for x
    x = 88,365,350.71/13,315.34
  6. Step 6: Final answer
    x = 6,636.36

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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.