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Finding the Fourth Proportional to 7,019.46, 10,529.19 and 6,591.78

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Solution

The fourth proportional to 7,019.46, 10,529.19 and 6,591.78 is: 9,887.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.46 : 10,529.19 = 6,591.78 : x
  2. Step 2: Convert to fraction form
    7,019.46/10,529.19 = 6,591.78/x
  3. Step 3: Cross multiply
    7,019.46x = 10,529.19 × 6,591.78
  4. Step 4: Simplify right side
    7,019.46x = 69,406,104.06
  5. Step 5: Solve for x
    x = 69,406,104.06/7,019.46
  6. Step 6: Final answer
    x = 9,887.67

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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.