Home / 15,699.94-21,663.61-8,984.50

Finding the Fourth Proportional to 15,699.94, 21,663.61 and 8,984.50

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Solution

The fourth proportional to 15,699.94, 21,663.61 and 8,984.50 is: 12,397.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.94 : 21,663.61 = 8,984.50 : x
  2. Step 2: Convert to fraction form
    15,699.94/21,663.61 = 8,984.50/x
  3. Step 3: Cross multiply
    15,699.94x = 21,663.61 × 8,984.50
  4. Step 4: Simplify right side
    15,699.94x = 194,636,704.05
  5. Step 5: Solve for x
    x = 194,636,704.05/15,699.94
  6. Step 6: Final answer
    x = 12,397.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.