Home / 19,358.34-26,715.68-11,405.87

Finding the Fourth Proportional to 19,358.34, 26,715.68 and 11,405.87

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Solution

The fourth proportional to 19,358.34, 26,715.68 and 11,405.87 is: 15,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.34 : 26,715.68 = 11,405.87 : x
  2. Step 2: Convert to fraction form
    19,358.34/26,715.68 = 11,405.87/x
  3. Step 3: Cross multiply
    19,358.34x = 26,715.68 × 11,405.87
  4. Step 4: Simplify right side
    19,358.34x = 304,715,573.04
  5. Step 5: Solve for x
    x = 304,715,573.04/19,358.34
  6. Step 6: Final answer
    x = 15,740.79

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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.