Home / 12,547.02-18,821.44-3,782.62

Finding the Fourth Proportional to 12,547.02, 18,821.44 and 3,782.62

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Solution

The fourth proportional to 12,547.02, 18,821.44 and 3,782.62 is: 5,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.02 : 18,821.44 = 3,782.62 : x
  2. Step 2: Convert to fraction form
    12,547.02/18,821.44 = 3,782.62/x
  3. Step 3: Cross multiply
    12,547.02x = 18,821.44 × 3,782.62
  4. Step 4: Simplify right side
    12,547.02x = 71,194,261.27
  5. Step 5: Solve for x
    x = 71,194,261.27/12,547.02
  6. Step 6: Final answer
    x = 5,674.20

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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.