Home / 13,113.09-19,668.02-5,314.41

Finding the Fourth Proportional to 13,113.09, 19,668.02 and 5,314.41

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Solution

The fourth proportional to 13,113.09, 19,668.02 and 5,314.41 is: 7,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.09 : 19,668.02 = 5,314.41 : x
  2. Step 2: Convert to fraction form
    13,113.09/19,668.02 = 5,314.41/x
  3. Step 3: Cross multiply
    13,113.09x = 19,668.02 × 5,314.41
  4. Step 4: Simplify right side
    13,113.09x = 104,523,895.60
  5. Step 5: Solve for x
    x = 104,523,895.60/13,113.09
  6. Step 6: Final answer
    x = 7,970.96

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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.