Home / 13,311.29-19,969.02-4,990.16

Finding the Fourth Proportional to 13,311.29, 19,969.02 and 4,990.16

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Solution

The fourth proportional to 13,311.29, 19,969.02 and 4,990.16 is: 7,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.29 : 19,969.02 = 4,990.16 : x
  2. Step 2: Convert to fraction form
    13,311.29/19,969.02 = 4,990.16/x
  3. Step 3: Cross multiply
    13,311.29x = 19,969.02 × 4,990.16
  4. Step 4: Simplify right side
    13,311.29x = 99,648,505.00
  5. Step 5: Solve for x
    x = 99,648,505.00/13,311.29
  6. Step 6: Final answer
    x = 7,486.02

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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.