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Finding the Fourth Proportional to 7,128.59, 10,693.02 and 6,743.03

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Solution

The fourth proportional to 7,128.59, 10,693.02 and 6,743.03 is: 10,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.59 : 10,693.02 = 6,743.03 : x
  2. Step 2: Convert to fraction form
    7,128.59/10,693.02 = 6,743.03/x
  3. Step 3: Cross multiply
    7,128.59x = 10,693.02 × 6,743.03
  4. Step 4: Simplify right side
    7,128.59x = 72,103,354.65
  5. Step 5: Solve for x
    x = 72,103,354.65/7,128.59
  6. Step 6: Final answer
    x = 10,114.67

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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.