Home / 12,646.12-18,970.02-3,881.08

Finding the Fourth Proportional to 12,646.12, 18,970.02 and 3,881.08

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Solution

The fourth proportional to 12,646.12, 18,970.02 and 3,881.08 is: 5,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.12 : 18,970.02 = 3,881.08 : x
  2. Step 2: Convert to fraction form
    12,646.12/18,970.02 = 3,881.08/x
  3. Step 3: Cross multiply
    12,646.12x = 18,970.02 × 3,881.08
  4. Step 4: Simplify right side
    12,646.12x = 73,624,165.22
  5. Step 5: Solve for x
    x = 73,624,165.22/12,646.12
  6. Step 6: Final answer
    x = 5,821.88

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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.