Home / 11,317.90-16,941.30-7,143.46

Finding the Fourth Proportional to 11,317.90, 16,941.30 and 7,143.46

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Solution

The fourth proportional to 11,317.90, 16,941.30 and 7,143.46 is: 10,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.90 : 16,941.30 = 7,143.46 : x
  2. Step 2: Convert to fraction form
    11,317.90/16,941.30 = 7,143.46/x
  3. Step 3: Cross multiply
    11,317.90x = 16,941.30 × 7,143.46
  4. Step 4: Simplify right side
    11,317.90x = 121,019,498.90
  5. Step 5: Solve for x
    x = 121,019,498.90/11,317.90
  6. Step 6: Final answer
    x = 10,692.75

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1.5x scale

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.