Home / 13,222.36-18,250.02-8,980.50

Finding the Fourth Proportional to 13,222.36, 18,250.02 and 8,980.50

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Solution

The fourth proportional to 13,222.36, 18,250.02 and 8,980.50 is: 12,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.36 : 18,250.02 = 8,980.50 : x
  2. Step 2: Convert to fraction form
    13,222.36/18,250.02 = 8,980.50/x
  3. Step 3: Cross multiply
    13,222.36x = 18,250.02 × 8,980.50
  4. Step 4: Simplify right side
    13,222.36x = 163,894,304.61
  5. Step 5: Solve for x
    x = 163,894,304.61/13,222.36
  6. Step 6: Final answer
    x = 12,395.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.