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Finding the Fourth Proportional to 7,039.05, 9,726.74 and 6,697.45

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Solution

The fourth proportional to 7,039.05, 9,726.74 and 6,697.45 is: 9,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.05 : 9,726.74 = 6,697.45 : x
  2. Step 2: Convert to fraction form
    7,039.05/9,726.74 = 6,697.45/x
  3. Step 3: Cross multiply
    7,039.05x = 9,726.74 × 6,697.45
  4. Step 4: Simplify right side
    7,039.05x = 65,144,354.81
  5. Step 5: Solve for x
    x = 65,144,354.81/7,039.05
  6. Step 6: Final answer
    x = 9,254.71

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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.