Home / 18,996.04-28,476.70-8,460.52

Finding the Fourth Proportional to 18,996.04, 28,476.70 and 8,460.52

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Solution

The fourth proportional to 18,996.04, 28,476.70 and 8,460.52 is: 12,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.04 : 28,476.70 = 8,460.52 : x
  2. Step 2: Convert to fraction form
    18,996.04/28,476.70 = 8,460.52/x
  3. Step 3: Cross multiply
    18,996.04x = 28,476.70 × 8,460.52
  4. Step 4: Simplify right side
    18,996.04x = 240,927,689.88
  5. Step 5: Solve for x
    x = 240,927,689.88/18,996.04
  6. Step 6: Final answer
    x = 12,683.05

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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.