Home / 11,140.85-16,709.13-7,185.89

Finding the Fourth Proportional to 11,140.85, 16,709.13 and 7,185.89

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Solution

The fourth proportional to 11,140.85, 16,709.13 and 7,185.89 is: 10,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.85 : 16,709.13 = 7,185.89 : x
  2. Step 2: Convert to fraction form
    11,140.85/16,709.13 = 7,185.89/x
  3. Step 3: Cross multiply
    11,140.85x = 16,709.13 × 7,185.89
  4. Step 4: Simplify right side
    11,140.85x = 120,069,886.63
  5. Step 5: Solve for x
    x = 120,069,886.63/11,140.85
  6. Step 6: Final answer
    x = 10,777.45

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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.