Home / 10,510.62-15,744.38-8,419.29

Finding the Fourth Proportional to 10,510.62, 15,744.38 and 8,419.29

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Solution

The fourth proportional to 10,510.62, 15,744.38 and 8,419.29 is: 12,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.62 : 15,744.38 = 8,419.29 : x
  2. Step 2: Convert to fraction form
    10,510.62/15,744.38 = 8,419.29/x
  3. Step 3: Cross multiply
    10,510.62x = 15,744.38 × 8,419.29
  4. Step 4: Simplify right side
    10,510.62x = 132,556,458.99
  5. Step 5: Solve for x
    x = 132,556,458.99/10,510.62
  6. Step 6: Final answer
    x = 12,611.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.