Home / 19,279.89-26,595.14-11,320.56

Finding the Fourth Proportional to 19,279.89, 26,595.14 and 11,320.56

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Solution

The fourth proportional to 19,279.89, 26,595.14 and 11,320.56 is: 15,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.89 : 26,595.14 = 11,320.56 : x
  2. Step 2: Convert to fraction form
    19,279.89/26,595.14 = 11,320.56/x
  3. Step 3: Cross multiply
    19,279.89x = 26,595.14 × 11,320.56
  4. Step 4: Simplify right side
    19,279.89x = 301,071,821.48
  5. Step 5: Solve for x
    x = 301,071,821.48/19,279.89
  6. Step 6: Final answer
    x = 15,615.85

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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.