Home / 11,128.88-16,693.32-8,926.76

Finding the Fourth Proportional to 11,128.88, 16,693.32 and 8,926.76

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Solution

The fourth proportional to 11,128.88, 16,693.32 and 8,926.76 is: 13,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.88 : 16,693.32 = 8,926.76 : x
  2. Step 2: Convert to fraction form
    11,128.88/16,693.32 = 8,926.76/x
  3. Step 3: Cross multiply
    11,128.88x = 16,693.32 × 8,926.76
  4. Step 4: Simplify right side
    11,128.88x = 149,017,261.24
  5. Step 5: Solve for x
    x = 149,017,261.24/11,128.88
  6. Step 6: Final answer
    x = 13,390.14

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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.