Home / 19,523.04-26,941.20-11,139.12

Finding the Fourth Proportional to 19,523.04, 26,941.20 and 11,139.12

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Solution

The fourth proportional to 19,523.04, 26,941.20 and 11,139.12 is: 15,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,523.04 : 26,941.20 = 11,139.12 : x
  2. Step 2: Convert to fraction form
    19,523.04/26,941.20 = 11,139.12/x
  3. Step 3: Cross multiply
    19,523.04x = 26,941.20 × 11,139.12
  4. Step 4: Simplify right side
    19,523.04x = 300,101,259.74
  5. Step 5: Solve for x
    x = 300,101,259.74/19,523.04
  6. Step 6: Final answer
    x = 15,371.65

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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.