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Finding the Fourth Proportional to 7,686.99, 10,609.02 and 5,325.03

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Solution

The fourth proportional to 7,686.99, 10,609.02 and 5,325.03 is: 7,349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.99 : 10,609.02 = 5,325.03 : x
  2. Step 2: Convert to fraction form
    7,686.99/10,609.02 = 5,325.03/x
  3. Step 3: Cross multiply
    7,686.99x = 10,609.02 × 5,325.03
  4. Step 4: Simplify right side
    7,686.99x = 56,493,349.77
  5. Step 5: Solve for x
    x = 56,493,349.77/7,686.99
  6. Step 6: Final answer
    x = 7,349.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.