Home / 18,941.64-26,128.76-11,855.76

Finding the Fourth Proportional to 18,941.64, 26,128.76 and 11,855.76

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Solution

The fourth proportional to 18,941.64, 26,128.76 and 11,855.76 is: 16,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.64 : 26,128.76 = 11,855.76 : x
  2. Step 2: Convert to fraction form
    18,941.64/26,128.76 = 11,855.76/x
  3. Step 3: Cross multiply
    18,941.64x = 26,128.76 × 11,855.76
  4. Step 4: Simplify right side
    18,941.64x = 309,776,150.40
  5. Step 5: Solve for x
    x = 309,776,150.40/18,941.64
  6. Step 6: Final answer
    x = 16,354.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.