Home / 12,643.02-18,962.10-3,875.58

Finding the Fourth Proportional to 12,643.02, 18,962.10 and 3,875.58

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Solution

The fourth proportional to 12,643.02, 18,962.10 and 3,875.58 is: 5,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.02 : 18,962.10 = 3,875.58 : x
  2. Step 2: Convert to fraction form
    12,643.02/18,962.10 = 3,875.58/x
  3. Step 3: Cross multiply
    12,643.02x = 18,962.10 × 3,875.58
  4. Step 4: Simplify right side
    12,643.02x = 73,489,135.52
  5. Step 5: Solve for x
    x = 73,489,135.52/12,643.02
  6. Step 6: Final answer
    x = 5,812.63

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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.