Home / 13,943.02-20,899.86-6,541.60

Finding the Fourth Proportional to 13,943.02, 20,899.86 and 6,541.60

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Solution

The fourth proportional to 13,943.02, 20,899.86 and 6,541.60 is: 9,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.02 : 20,899.86 = 6,541.60 : x
  2. Step 2: Convert to fraction form
    13,943.02/20,899.86 = 6,541.60/x
  3. Step 3: Cross multiply
    13,943.02x = 20,899.86 × 6,541.60
  4. Step 4: Simplify right side
    13,943.02x = 136,718,524.18
  5. Step 5: Solve for x
    x = 136,718,524.18/13,943.02
  6. Step 6: Final answer
    x = 9,805.52

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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.