Home / 19,354.95-26,719.67-11,405.21

Finding the Fourth Proportional to 19,354.95, 26,719.67 and 11,405.21

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Solution

The fourth proportional to 19,354.95, 26,719.67 and 11,405.21 is: 15,744.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.95 : 26,719.67 = 11,405.21 : x
  2. Step 2: Convert to fraction form
    19,354.95/26,719.67 = 11,405.21/x
  3. Step 3: Cross multiply
    19,354.95x = 26,719.67 × 11,405.21
  4. Step 4: Simplify right side
    19,354.95x = 304,743,342.40
  5. Step 5: Solve for x
    x = 304,743,342.40/19,354.95
  6. Step 6: Final answer
    x = 15,744.98

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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.