Home / 13,580.02-18,737.94-8,276.50

Finding the Fourth Proportional to 13,580.02, 18,737.94 and 8,276.50

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Solution

The fourth proportional to 13,580.02, 18,737.94 and 8,276.50 is: 11,420.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.02 : 18,737.94 = 8,276.50 : x
  2. Step 2: Convert to fraction form
    13,580.02/18,737.94 = 8,276.50/x
  3. Step 3: Cross multiply
    13,580.02x = 18,737.94 × 8,276.50
  4. Step 4: Simplify right side
    13,580.02x = 155,084,560.41
  5. Step 5: Solve for x
    x = 155,084,560.41/13,580.02
  6. Step 6: Final answer
    x = 11,420.05

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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.