Home / 7,145.70-10,720.98-4,510.14

Finding the Fourth Proportional to 7,145.70, 10,720.98 and 4,510.14

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Solution

The fourth proportional to 7,145.70, 10,720.98 and 4,510.14 is: 6,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.70 : 10,720.98 = 4,510.14 : x
  2. Step 2: Convert to fraction form
    7,145.70/10,720.98 = 4,510.14/x
  3. Step 3: Cross multiply
    7,145.70x = 10,720.98 × 4,510.14
  4. Step 4: Simplify right side
    7,145.70x = 48,353,120.74
  5. Step 5: Solve for x
    x = 48,353,120.74/7,145.70
  6. Step 6: Final answer
    x = 6,766.74

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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.