Home / 10,909.37-16,364.12-4,985.03

Finding the Fourth Proportional to 10,909.37, 16,364.12 and 4,985.03

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Solution

The fourth proportional to 10,909.37, 16,364.12 and 4,985.03 is: 7,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.37 : 16,364.12 = 4,985.03 : x
  2. Step 2: Convert to fraction form
    10,909.37/16,364.12 = 4,985.03/x
  3. Step 3: Cross multiply
    10,909.37x = 16,364.12 × 4,985.03
  4. Step 4: Simplify right side
    10,909.37x = 81,575,522.38
  5. Step 5: Solve for x
    x = 81,575,522.38/10,909.37
  6. Step 6: Final answer
    x = 7,477.57

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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.