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Finding the Fourth Proportional to 7,065.90, 9,816.39 and 7,001.67

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Solution

The fourth proportional to 7,065.90, 9,816.39 and 7,001.67 is: 9,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.90 : 9,816.39 = 7,001.67 : x
  2. Step 2: Convert to fraction form
    7,065.90/9,816.39 = 7,001.67/x
  3. Step 3: Cross multiply
    7,065.90x = 9,816.39 × 7,001.67
  4. Step 4: Simplify right side
    7,065.90x = 68,731,123.37
  5. Step 5: Solve for x
    x = 68,731,123.37/7,065.90
  6. Step 6: Final answer
    x = 9,727.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.