Home / 10,973.30-16,455.90-5,424.80

Finding the Fourth Proportional to 10,973.30, 16,455.90 and 5,424.80

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Solution

The fourth proportional to 10,973.30, 16,455.90 and 5,424.80 is: 8,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,973.30 : 16,455.90 = 5,424.80 : x
  2. Step 2: Convert to fraction form
    10,973.30/16,455.90 = 5,424.80/x
  3. Step 3: Cross multiply
    10,973.30x = 16,455.90 × 5,424.80
  4. Step 4: Simplify right side
    10,973.30x = 89,269,966.32
  5. Step 5: Solve for x
    x = 89,269,966.32/10,973.30
  6. Step 6: Final answer
    x = 8,135.20

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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.