Home / 19,145.70-26,421.72-10,650.21

Finding the Fourth Proportional to 19,145.70, 26,421.72 and 10,650.21

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Solution

The fourth proportional to 19,145.70, 26,421.72 and 10,650.21 is: 14,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,145.70 : 26,421.72 = 10,650.21 : x
  2. Step 2: Convert to fraction form
    19,145.70/26,421.72 = 10,650.21/x
  3. Step 3: Cross multiply
    19,145.70x = 26,421.72 × 10,650.21
  4. Step 4: Simplify right side
    19,145.70x = 281,396,866.56
  5. Step 5: Solve for x
    x = 281,396,866.56/19,145.70
  6. Step 6: Final answer
    x = 14,697.65

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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.